Item Type: Music Box Movement Material: Metal, plastic 1Healing Function: Listening to music can soothe ears and relax the body and mind, music box is suitable for children and adults. 2Dual Use: Music box is played in a circle for 2 to 3 minutes, which can be used directly or glued to your own crafts or wood products. 3Easy Install: White plastic shell can be easily removed to expose the mechanical movement, allow you can install the movement on your crafts. 4Widely Use: You can install the movement in paper boxes, wooden boxes, glass boxes, plastic boxes and metal boxes to make your own music box. 5Endless Fun: You can also play the movement directly on the table, watch its gears turning and listen to pure tunes, which is great fun.1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1 x MusicBoxMovement