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 wearer’ 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. Each product in the Body Extensions collection includes detailed instructions for care and usage. Approximate Product Dimensions: Hollow Extension - Bulbed Silicone DongTotal Length: 7 in. (17.8 cm)Width/Diameter: 1.75 in. (4.4 cm)Unstretched Inner Diameter: 1.6 in. (41 mm)Circumference: 5.75 in. (14.6 cm) Approximate Product Dimensions: Hollow Extension - Slim Silicone DongTotal Length: 7.5 in. (19.1 cm)Width/Diameter: 1.75 in. (4.4 cm)Unstretched Inner Diameter: 1.6 in. (41 mm)Circumference: 5.75 in. (14.6 cm) Approximate Product Dimensions: Hollow Extension - Large Silicone DongTotal Length: 8 in. (20.3 cm)Width/Diameter: 2 in. (5.1 cm)Unstretched Inner Diameter: 1.6 in. (41 mm)Circumference: 7 in. (17.8 cm) Approximate Product Dimensions: Silicone Harness with Elastic Waist BandFits Waists From 28 in. (71 cm) to 48 in. (122 cm)