The triangle key in this music box DIY accessory set is an essential tool for looking to repair or maintain their mechanical music boxes. Its unique shape allows it to engage with the winding mechanism securely, providing a reliable way to wind the clockwork and keep your music box playing beautifully. Features -Color:Silver -Material:Metal -Size: 2.70X2.00X0.50cm/1.06X0.79X0.20in -Convenient diy tool: this set of music box accessories is suitable for diy projects, allowing you to easily assemble and repair your music box -Easy to carry: the small and lightweight design makes these accessories easy to transport, can take them with you wherever you go -Efficient winding: the winding mechanism is designed to be efficient, saving you time and effort when winding your music box -Solid material: made from metal, these accessories are built to last and can withstand regular use without showing signs of wear -Wide application: these accessories are compatible with various types of music boxes, making them a choice for any music box enthusiast Package list: 3 x Music Box Winding Key