Complete fun in a box! Each NS Novelties Luna Balls Trainer Kit includes 3 Luna Ball Plugs in graduating sizes. Made of body-safe and odorless TPE. Waterproof, phthalate-free and features a super strong suction cup base. Safe to use with any of your favorite lubricants. S: 3.1" x 1.7" M: 3.4" x 2.1" L: 3.8" x 2.3". Package Dimensions: 11.25" x 3.5" x 3". Material: TPE.