The super stretchy Ball Stretcher fits scrotums of all shapes and sizes. The Ball Stretcher is super easy to put on, just stretch it between your fingers with each hand and gently release it between the base of your cock and your balls.The Ball Stretcher comes in SilaSkin which is a proprietary blend of TPR and Silicone. The Ball Stretcher is safe with water based lubes. This product is not compatible with latex products.