3 smooth cone-shaped graduated sizes to build up to when training Body-contouring curved handles for all-day wearability Comfort fit tapered base with slim neck Cone-shaped head provides a satisfying fullness sensation Dimensions: Small: (Overall length: 4.25in.; Diameter at widest: 4in.), Medium: (Overall Length: 4.75in.; Diameter at widest: 4.5in.), Large: (Overall Length: 5.75in.; Diameter at widest: 5.25in.) Weight: Small: 0.9 oz; Medium: 1.4 oz.; Large: 2.6 oz. Material: 100% Silicone made with Silicone Silk