3 piece anal plug trainer set. Graduated sizes for extra comfort. Curved, ergonomic base for easy wearability. Can be warmed or cooled for a variety of sensations. Ultra premium Silicone Silk feels like velvet on your skin. Care clean with soap and warm water or toy cleaner. Use only with water based lubricants. Materials Silicone. Dimensions small plug 2.75 inches, medium butt plug 3.25 inches, large butt plug 4 inches circumference.