How to Fit and Wear Double Cock Rings With a Ball Sling

Start with the two-ring layout

A double cock ring with a ball sling is not worn like a single ring. The smaller ring goes around the shaft, and the larger ring goes around the shaft and testicles, so the sling sits behind the scrotum and supports the balls. This split placement is what separates the shaft and testicles for a snug, secure feel.

Before you buy, check the inner diameters. The Screaming O RingO2 lists a 90 mm (3.5") smaller ring and a 120 mm (4.7") larger ring, while the Ofinity lists a 30 mm (1.18") smaller ring and a 40 mm (1.57") larger ring. Those numbers describe the unstretched rings, and both products are described as stretchy, so the fit depends on how much the material gives rather than a fixed metal size.

Placement steps for a double c-ring

Work slowly and stop if anything pinches or feels too tight. The supplied product information does not include a step-by-step safety routine, so treat these as placement checkpoints rather than a medical protocol.

1. Stretch the smaller ring around the shaft: The RingO2 and Ofinity both use one ring around the shaft. Position it at the base rather than mid-shaft so the larger ring can sit behind it.
2. Stretch the larger ring around the shaft and testicles: The Ofinity instructions say to stretch the top ring around the shaft and the bottom ring around the testicles, then position them against the base of the body. The RingO2 uses the same split: one ring around the shaft, the second around the shaft and testicles.
3. Settle the sling behind the scrotum: The RingO2 describes a stretchy sling for snug testicle support. Adjust the larger ring so it sits behind the balls rather than pressing on them.
4. Check the fit before play: Both rings should feel snug and secure, not sharp or numbing. If the smaller ring rolls or the larger ring slips forward, readjust the split before continuing.

RingO2: the wider, sling-style option

• The Screaming O RingO2 Double C-Ring With Ball Sling: Made of lab-tested body-safe SEBS, the RingO2 stretches to fit almost any size member with a stretchy sling for snug testicle support. SEBS is the material that lets the ring stretch over the shaft and testicles, so the fit is more about stretch than a fixed circumference.

  

• The Screaming O RingO2 Double C-Ring With Ball Sling: Inner diameter: 90 mm (3.5") smaller ring and 120 mm (4.7") larger ring; thickness 10 mm (0.4"). The wider rings and thicker profile give more surface contact, which can feel more supportive but also bulkier under clothing.
• The Screaming O RingO2 Double C-Ring With Ball Sling: Available in Blue or Clear. Color is the only listed option, so choose based on visibility and preference rather than fit.

Ofinity: the narrower, stretchy double ring

• The Screaming O Ofinity Double Erection Ring Blue: The Ofinity is a stretchy, durable double ring with a unique isolation design that constricts blood flow for concentrated enhancement and accommodates almost any size member. The narrower ring profile may suit you if you want a less bulky double ring, while the isolation design is the same split-ring concept as the RingO2.

  

• The Screaming O Ofinity Double Erection Ring Blue: Inner diameter: 30 mm (1.18") smaller ring and 40 mm (1.57") larger ring; product length 95 mm (3.74"). These are much smaller unstretched diameters than the RingO2, so the stretch of the material does more of the sizing work. Check the listed dimensions against your own measurements rather than assuming one size fits all.
• The Screaming O Ofinity Double Erection Ring Blue: When you're done, simply wash the Ofinity with soap and warm water, towel dry, and keep it close and ready for your next encounter. This is the only supplied cleaning instruction for either product, so follow it for the Ofinity and use the same soap-and-warm-water approach for the RingO2 unless the packaging says otherwise.

Which double cock ring fits your routine?

Both products use the same two-ring placement, but they differ in bulk, listed dimensions, and color choice. The RingO2 gives you a wider sling and a Blue or Clear option; the Ofinity is a narrower blue ring with a listed soap-and-warm-water cleaning step.

• Choose the RingO2 if you want a wider sling and color choice: The 10 mm thickness and 90/120 mm inner diameters create a broader, more supportive feel, and the Blue or Clear option lets you pick a look.
• Choose the Ofinity if you prefer a narrower, lower-profile ring: The 30/40 mm inner diameters and 95 mm length describe a more compact double ring, and the supplied care instruction makes cleanup straightforward.
• Skip both if you need a metal or adjustable fit: Neither product is metal or adjustable. If you want a fixed metal ring or a snap closure, look at a metal cock ring or an adjustable ring guide instead.

Fit checks and honest limitations

The supplied records do not include a maximum wear time, a recommended lube, or a step-by-step removal procedure. That means you should treat fit as a personal check: the ring should stay in place without pinching, and you should be able to remove it without force. If either ring feels tight enough to cause numbness or discoloration, stop and readjust or size up.

Because both rings are stretchy SEBS, they may roll or shift during movement. The RingO2's wider profile may stay put more easily, while the Ofinity's narrower rings may need more frequent repositioning. Neither product is described as compatible with silicone lube or oil-based lube in the supplied information, so check the packaging before pairing them with a lubricant.