This music box DIY accessory set is ideal for those looking to repair or enhance their musical box. The winding keys, knobs, and handles are designed to be compatible with a wide range of music box mechanisms, ensuring a and easy installation. These components are ideal for both hobbyists and professionals, offering a reliable solution for maintaining and upgrading your music box. Features -Color:Silver -Material:Iron -Size:2.50X2.50X0.50cm/0.98X0.98X0.20in -Diy project: enjoy a diy project by assembling a music box with standard spring mechanisms -Dependable operation: the standard spring mechanism provides dependable and smooth operation of the music box -adjustable tone: the key knob handle allows for easy adjustment of the music box's tone -Calming music: the music box emits calming music that promotes relaxation -Special present: a creative and sentimental present for loved ones, ideal for conveying your feelings and enhancing relationships Package list: 4 pcs x 6pcs x Music Box Keys