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.