Feature:1. STRESS RELIEF: This music box movement offers therapeutic features for kids and adults, watching the little gears move and listening to the music is delightful and stress relieving.2. 18 NOTES: This wind up music movement uses 18 notes to produce pleasing songs and is very easy to use and operate.3. MUSIC BOX DIY: You can put this music box movement into paper boxes, wooden boxes, glass boxes, plastic boxes and metal boxes to create your unique music box.4. CLEAR SOUND: Clockwork music box movement is well made for clearer and more durable sound.5. PERFECT GIFT: You will be very excited after finishing this music mechanism movement, a meaningful gift to yourself and your friends.Specification:Item Type: 18 Note Musical Mechanism MovementMaterial: Acrylic, AlloyProduct Use: Suitable for Birthday Gifts, Musical Enlightenment, Etc.Battery: 1 Section of AA Batteries ((Battery Not Included))Music Song Name: FOR ELISESize: Approx. 5 x 4.5 x 2.3cm / 2.0 x 1.8 x 0.9in.Package List:1 x Battery Box1 xMusical Mechanism Movement4 x Screw