Spartacus Leathers Cock Gear Rubber Cock Rings. Firm Rubber Cock Rings Blue 3 Piece Set. Experiment with each of our rubber cock ring sizes in your choice of colors. Each set contains one 1.25 inches ring, one 1.5 inches ring and one 2 inches ring. What fun! When worn around the base of the penis and testicles, many users find that cock rings increase sexual pleasure. Weighs 0.26 pound. Firm Rubber Ring Set from Spartacus A Passion For Quality Catalog page 18. Made in the USA. New image added February 10, 2013. -old