A cockring and ballstretcher in a single unit, that is the Oxballs Z Balls Ballstretcher your cock slips in on the top ring and your balls go in the bottom ring. You can double up on the ball stretcher with another Z Balls when you want more stretch. It is made from FLEX TPR which holds firmly while still being soft and stretchy.
The total length is measured to be 1.5 inches, the total circumference measured to be at 2 inches and the smallest usable circumference is 1 inch.