Ring Guide

You're in the right place. Let's get you set up.

Two quick questions, then your size and instructions. Takes about a minute.

Step 1

A couple quick questions.

This helps us show you the right instructions. No need to know model names or SKUs.

What do you have?

Not sure? Check your packaging. If you see more than one ring inside, select the set option.

How are you using it?

A pump, sometimes called a VED, is the cylinder device used to draw blood flow before placing the ring. If you intend to use the ring without a vacuum cylinder, select standalone.

Step 2

Find your size.

A correctly sized ring should feel snug, not painful. Measure once, type in the number, and we'll tell you which of your rings to start with.

  1. Do a regular pump session first, without placing a ring.

    Pump to your usual comfortable level, the same way you normally would.

  2. Remove the cylinder and measure around the base right away.

    Wrap a soft tape measure all the way around the base of the shaft, the same way you'd measure your waist. No tape measure? Wrap a strip of paper around instead, mark where it overlaps, then lay the paper flat against a ruler. Fullness fades quickly once the cylinder is off, so have everything ready before you start.

  3. Type that number into the calculator below.

    It's the full distance around, in inches or centimeters. We'll turn it into a ring size.

Your measurement

The full distance around the base

Your starting size

Look for a ring opening near

Now find that ring in your set.

Take your rings out and lay them flat on a table. With a ruler, measure straight across the hole of each ring at its widest point, without stretching it. The ring whose opening is closest to your number above is your starting ring. If your number lands between two rings, start with the bigger opening, not the smaller.

If you're between two sizes, start with the larger one. A ring that's slightly loose is safer than one that's too tight. You can always size down once you're comfortable.

Step 3

How to use your ring.

  1. Prepare the ring before you start.

    Stretch your ring onto the outside of the pump cylinder and slide it down toward the open end, the end that sits against your body. A small amount of water-based lubricant on the inside of the ring helps it move smoothly later. Use water-based lubricant only. Silicone-based lubricants break down silicone rings over time.

  2. Pump to your usual comfortable level.

    Create a seal at the base and pump in slow, steady intervals. Stop at the point that's comfortable for you. There's no benefit to pushing past that.

  3. Transfer the ring while the pressure is still on.

    Do not touch the release valve yet. Keep the cylinder sealed against your body, and slide the ring off the end of the cylinder and onto the base of the shaft until it sits against the body.

  4. Now release the pressure and remove the cylinder.

    With the ring seated at the base, open the release valve, let the vacuum release, and remove the cylinder. The ring holds the blood flow in place.

  5. Use as needed, and remove within 30 minutes.

    Take the ring off by gently rolling it from base to tip. Never pull it straight off. Rinse with warm water after each use.

Consistency matters more than any single use. A regular, comfortable routine works better than pushing for more, faster.
Good to know

What's normal the first few times.

An erection with a ring on can look and feel a little different from what you're used to. It may look slightly fuller, feel a little cooler to the touch, and appear a shade darker in color. All of that is expected. The ring is holding blood in place, and blood that stays put cools and darkens slightly. It's a sign the ring is doing its job.

Sensation can feel different too. Some men notice more sensitivity, some notice less. Neither is a problem.

With a pump, the erection may feel firmest along the shaft and a little less rigid right at the base, so it can pivot slightly where it meets the body. That's a normal characteristic of vacuum-assisted erections. Supporting with a hand during use helps, and most men stop noticing it after a few sessions.

The first few sessions are practice. Placement gets faster and easier every time, usually within a week of regular use.

Read this before you use your ring

When not to use your ring.

  • You have any condition affecting blood clotting, or take blood-thinning medication, without first talking to your doctor
  • You have a known circulation or vascular condition
  • You have sickle cell disease or sickle cell trait
  • You have a history of priapism (prolonged erections)
  • You have significant penile curvature or Peyronie's disease, without first talking to your doctor
  • You have reduced sensation in the area, for example from diabetes or a spinal cord injury, since you may not notice a ring that's too tight
  • The skin in the area shows any open wound, infection, or irritation
  • You're unsure whether a ring is appropriate for your specific recovery stage (check with your urologist or care team first)

Some darkening in color and a cooler feel are normal while a ring is on. That's held blood behaving the way held blood does. The signs below are different. They mean take the ring off now.

If color and temperature don't return to normal within a few minutes after removing the ring, contact a medical provider.

General rules, every time:

  • Never wear a ring for more than 30 minutes at a time
  • Never fall asleep with a ring in place
  • Remove gently by rolling, never by pulling straight off
  • If you've recently had surgery, follow your care team's specific guidance over anything general written here

If something doesn't feel right, take the ring off first and ask questions after. There's no situation where waiting it out is the better call.

Step 4

Moving through your set.

If your set includes multiple sizes, this is how to think about progressing through them.

  1. Start with the size the calculator recommended.

    There's no benefit to starting with a bigger ring than your body needs, and no benefit to starting tighter, either. Your recommended size is the starting point.

  2. Give each size time.

    Stay with a size until it feels fully comfortable and routine. For most men that's at least a couple of weeks. Comfort happens on its own timeline, not a fixed schedule.

  3. Move down a size only when the current one stops doing enough.

    A smaller size means a firmer fit. The signal to move down is a ring that starts to feel loose or isn't providing the support it used to, not a calendar date.

  4. If a smaller ring ever feels too tight or uncomfortable, go back to the previous size.

    That's normal, not a setback.

  5. If you're working with a urologist or care team, bring this progression to your next appointment.

    Their specific guidance takes priority over this general framework.

There's no prize for moving through the set quickly. The goal is comfortable, consistent use, at whatever size gets you there.
Common questions

Common questions.

Answers to the things people usually run into.

Didn't find what you needed?

Our team can help with sizing, fit, or general questions about your product. For anything medical, your physician or urologist is the right call.

Contact our team Read more on the blog