Our functional wooden rings are smoothed and finished to make them waterproof and hypo-allergenic. Our selection includes four different rings. The two smaller rings (1 ¾” or 2”) encircle the testicles, deterring ejaculation or can be worn by most users to surround the penis for decorative purposes. Dimensions: Interior diameters are 1 ¾” and 1 ½”. Exterior height approximately 5/8”. Sold individually.