Be greedy with a small, medium or large egg to choose from, each containing powerful vibrations across 12 different functions. Plug your chosen egg into the control unit and direct your pleasure journey at the touch of a button. Materials: ABS w/PU coating, Size: Small: 1.5 x 1"- Medium: 2.25 x 1"- Large: 2.75 x 1.5" Small: 4.5 x 2.5 cm- Medium: 5.5 x 2.5 cm- Large: 7.5 x 3.5 cm, Power: AAA size batteries x 2