BE anything you want to be. The Body Extensions Hollow Strap-On System by Doc Johnson® is a unisex collection of harnesses and hollow silicone attachments designed to stimulate the body and allow penetration play regardless of the type or function of the wearerft.s anatomy. This high-quality 4-piece set includes an elastic and premium silicone harness designed for maximum comfort and durability and three premium silicone attachments crafted to maximize the sexual pleasure and empowerment of every user. Fully Adjustable Premium Silicone and Elastic Harness Fits Waists 28in. (71cm) to 48in. (121cm). Hollow Premium Silicone Attachments Hold Shape While Feeling Soft and Smooth. Equally Suited for All Sexes. Each product in the Body Extensions collection includes detailed instructions for care and usage. Material: Silicone Total Length Bulbed Dong: 7 inches (17.78cm) - Slim Dong: 7.5 inches (19.05cm) - Large Dong: 8 inches (20.32cm) Width/Diameter Bulbed Dong: 1.75 inches (4.45cm) - Slim Dong: 1.75 inches (4.45cm) - Large Dong: 2 inches (5.08cm) Circumference Bulbed Dong: 5.75 inches (14.61cm) - Slim Dong: 5.75 inches (14.61cm) - Large Dong: 7 inches.