Description Hand crank music box mechanism features a manual music box movement, allowing you to experience gentle and accurate melodies anywhere without batteries. Perfect for travel, camping, or present-giving, this diy music box movement set is compact yet practical, designed for creative projects and smooth musical enjoyment at all times. Features - Color: Golden -Material:Metal - Size: 8.00X3.30X2.00cm/3.14X1.30X0.79in -Music Box Mechanism: with the diy music box movement, you can easily make your own music box, fulfilling your creative needs and making unique presents for family and friends -Portable melody anywhere: the manual music box movement requires no batteries, making it ideal for travel, camping, and outdoor adventures, allowing you to enjoy music -Smooth & accurate sound: this music box mechanism delivers soft tones and precise pitches, ensuring a pleasant listening experience every time you use your hand crank music box -Sturdy quality: crafted with a high precision music box mechanism, this replacement musical mechanism maintains stable and smooth performance for prolonged use with minimal maintenance -Space-saving present option: featuring a compact design, these mini music box mechanisms are easy to carry and perfect for gifting, expressing your heartfelt wishes and creativityPackage list: 4 x music box movement