The super stretchy combo Cock + Ball is completely unique and is so soft and comfortable when wearing it! When putting this unit on, make sure you stretch the cock ring over your entire cock and balls. After that, the ball stretcher will be dangling under your scrotum and just simply use both hands to gently stretch it over your balls. Believe us, you won't ever need to worry about losing your hard on with this toy. The Cock + Ball fits most men of any size, length and girth. The Cock & Ball is made of SilaSkin which is our proprietary blend of TPR and Silicone and is irresistibly soft and safe with water based lubes. This product is not compatible with latex products. Wash thoroughly with mild soap and water. Perfect Fit Brand Products are sold, and intended for use strictly as adult novelty toys for entertainment. They are not intended for medical use and have not been clinically tested. No medical claims are warranted or implied by the use of these products.