Cock Rings 60 pcs.A cock ring for every penis! This economy pack has 4 different kinds of cock ring that every man will want to have on their penis the blue cock rings are slightly stretchy and more comfortable for beginners, while experts will probably prefer the darker rings that are a tighter fit. Just put your hand in the box and find the perfect ring for the occasion. Outer 5. 8 cm, inner 3. 8 cm, thickness 1 cm. Silicone.