Cerus Tri-Rings | 2 Piece Set

$19.00 USD
Shipping calculated at checkout.

Named after Persephone’s mythical bull, the Cerus Tri-Ring set is built for men who want stronger erections, longer sessions, and more control, with the freedom to wear it the way that feels best for you.

Made from silky soft, body-safe silicone, Cerus features an ergonomic tri-ring design that supports blood flow while remaining flexible and comfortable.

Whether you prefer a lighter hold or a firmer, locked-in feel, the included Snug and Snugger fit rings let you choose your level of pressure and pleasure without guesswork.

Ergonomic Tri-Ring Design

Three interconnected, flexible rings evenly distribute pressure for secure, balanced support. The ergonomic tri-ring design adapts to different bodies and fit preferences, allowing versatile wear and layered stimulation without excessive restriction.

Soft, Stretchy Silicone

Body-safe silicone offers a soft, stretchy feel that moves with you. Designed for easy on, easy off comfort, it allows comfortable stacking and extended wear without pinching, pressure, or irritation.

Textured Inner Ridges for Added Sensation

Subtle inner ridges line each ring, enhancing sensation and responsiveness. The gentle texture increases stimulation during wear while remaining smooth and comfortable, adding pleasure without overwhelming sensitivity or discomfort.

Size & Fit Guide

Cock rings are all about girth, not length. Though the added pressure from the rings can help lengthen a little bit it is not the main function. So how do you choose the right size?

Snugger - Tighter Hold

Best for:

  • Penis girth 4.25–5.25 in when erect (108–133 mm circumference)
  • Slim to average girth
  • Scrotum holds, and snug fits around the penis head
  • Those who want a firmer, more “locked-in” feel

Inner opening height: 1.10 in (29 mm)

Snug - More Breathing Room

Best for:

  • Penis girth 5.25–6.5 in when erect (133–165 mm circumference)
  • Thicker shafts
  • Longer wear and relaxed comfort

Inner opening height: 1.34 in (34 mm)

Fit Tip for Condom Use

If you plan to use Cerus primarily with a condom around the head, start with Snugger for a secure fit that helps keep everything in place without over-tightening.

Fit Tip For Sizing

If you’re between fits or new to cock rings, start with Snug. You can always size down to Snugger once you know your comfort zone.

The Benefits of Cerus

Two Sizes, Multiple Fits

Comes with two tri-rings (Snug and Snugger) so you can dial in the fit that feels right for your body, comfort level, and the perfect pressure.

Stronger, Firmer Erections

Helps hold blood at the base of the shaft, supporting firmer erections without feeling overly tight or cutting circulation off.

Longer-Lasting Performance

Designed to support stamina with steady, balanced pressure, so you can stay present and last longer without losing all sensation.

Four Ways to Use It

The Cerus Tri-Ring is designed for flexible wear depending on your anatomy, comfort level, and desired sensation. Its tri-ring shape and stretchy silicone, it supports multiple positions including condom play.

Shaft Support

Worn around the base of the shaft to help maintain firmness and support blood retention during arousal.

Shaft + Testicles

Positioned around the shaft and behind the testicles for a more anchored, locked-in feel and increased intensity.

Testicle Focus

Worn around the testicles only for lighter pressure and heightened sensitivity without shaft compression.

With a Condom (Around the Head)

Worn just behind the head of the penis, over a condom, to help keep the condom securely in place and reduce slippage during use.

  • The Snugger ring is best for this fit due to its tighter hold
  • Always use water-based lubricant
  • Adjust slowly to ensure comfort and proper circulation

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