5Pcs 8mm 0.35" Silver Metal Winder T-Bar Replacement Winding Keys for Windup Jewelry Music Box is available in Music Boxes

Here's an item that you may need. It's a replacement Winding key for a music box. The key can be lost rather easily and once it is, the music box is non-functional. It fits for all Sankyo and Yun Sheng musical movements or other standard movements, Chances are, this is the make you have.