Part ball stretcher and part ball weight, the Bull Bag is two scrotum toys in one! Simply stretch the opening on the top of the Bull Bag and gently release over your entire scrotum and you’re ready to go. Gives an incredibly pleasing 1.5 in. stretch and tug. Also works for giving your package that extra-large bulge under your favorite pair of jeans.The Bull Bag is made of PF Blend which is a mix of silicone and TPR that gives it an unbelievable stretch factor. Safe with water based lubes.