Fully adjustable to fit all penis sizes. Double locking. Double the fastening power of single loop lassos for a secure fit. Double lock with quick release feature for convenience. Versatile and easy to use. Just slip over your penis. Tighten loop the other half of lasso behind your scrotum. Cinch. Peace of mind. Made of body safe Silicone. Contains no synthetic fragrance, phthalate or latex. It meets or exceeds International Product Safety Standards.