Scope of application:open-hole flute Comfortable handle, used for open-hole flute, 10 packs for easy replacement, the plug is made of silicone, when plugged into the hole of the flute, it has good sealing performance, no air leakage, upgraded metal material, will not be affected by moisture, not easy to rust, and will be disassembled later Convenient and perfect for transitioning from closed-bore to open-bore Product:Wind Music Repair Parts - Universal Flute Metal Hole Plug 10pcs Colour:Gold & Silver Material:Metal+Silicone Size:3x0.7x0.7cm Package Contents: 10 * hole plugs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.