This is the moment when quality, style and a secure grip meet. The Mr. Steel GrooveLine is a grooved, stainless steel cock ring that gives your erection firm support and a jewel-like finish – no flex, no explanation.
Three precise sizes (45/50/55 mm) and easy size guidance make the choice safe, so you can focus on what really matters: pleasure.
GrooveLine is a metal cock ring for those who value precise feel and long-lasting quality. The groove provides a secure grip for insertion and finishes the appearance with a stylish finish. Stainless steel feels cool at first and quickly becomes body heat - the weight and firmness make the feeling full. If you are looking for a stainless steel cock ring that will last time and use, this is the choice.
The ring supports blood flow so that the hardness remains stronger and longer. When the model is not flexible, the feel is precise and adult-like: firm, clear and confident. The grooved profile makes it easier to grip even with lubricant, and looks good even when the ring is purely a piece of jewelry, not just a tool.
A quick reminder here: if you want to get your fun on this weekend, this is a quick update. Order now – get discreet 1-day delivery to your pickup point and pay later if you want.
Example: circumference 140 mm → 140 ÷ 3.1416 ≈ 44.6 mm → nearest size 45 mm . If you are wondering between two sizes, most people choose the larger size – steel does not stretch, so a size that is too large may feel loose.
Want to act now? Add GrooveLine to your cart now. Buy now – pay later is available, and we deliver discreetly to your nearest pickup point within a day . Same price for in-store pickup.
“Precise size, precise support.” I switched from a soft tire to a steel one. The 50 mm fits just right, not nearly. The feel is firm and I feel confident. I also like that the tire looks good – like a piece of jewelry. – M.
“The groove makes it easy to set up.” My first metal tire. A little lube, the tire in place, and it works. Cool start is a nice bonus, warms up quickly. Cleaning is super easy. – MM
“You can see and feel the quality.” I wanted something that would last. GrooveLine is smooth, heavy, and solid. The support is even, and the difference to a soft tire is clear. – A.
“Choose a size that’s tight rather than loose.” Steel doesn’t stretch, so fit is key. If your girth falls between two sizes, most people prefer the smaller size. Try it out at home first – a small amount of lube, a few calm breaths, and the feeling will tell the rest. Remove the ring immediately if it feels wrong. With these instructions, you’ll get what you came for from a metal cock ring : solid support and a secure feel.
| Material | Stainless steel |
| Inner diameter (options) | 45mm, 50mm, 55mm |
| Compatibility | Water- and silicone-based lubricants, compatible with condoms |
Measure the circumference at the base of the penis with a measuring tape. Calculate the diameter using the formula circumference ÷ 3.1416 and choose the closest size (45, 50 or 55 mm). If you are between two sizes, the larger one will feel better for most people.
Wear for no more than approximately 20-30 minutes at a time. Remove immediately if you experience pain, numbness, or notice any discoloration.
Yes. Metal works well with both water-based and silicone-based lubricants and is condom-friendly.
Wash with warm water and mild soap or toy cleaner. Dry thoroughly before storing.
Remove it immediately. Try the next size up or use lighter pressure with a soft ring. Listen to your body – its message is always the most important.
Add Mr. Steel GrooveLine to your cart now. Delivery is discreet in 1 day, Buy Now - Pay Later is available, a 2-year warranty gives you peace of mind and unopened products have a 365-day return policy . Same price in store, pick up immediately.