Drum accessories: The drum is a tool for assembly drums, which can be used to remove drums and drops, tune the tension of the tonic adjustment drum, allowing it to adjust the sound according to the tension of the drum. Quality materials: The drum keys are made of high-quality metal, corrosion resistant, durable, long-term use without breaking or deformation, very suitable for drummers and crackmanship Application: The speed key has a rotating handle for quick disassembly or replacement of the drops during the initial tension rod adjustment to quickly replace the drum. Can be used for the needle, drum stool, bracket, etc. can be adjusted hardware. Delivery Quantity: 4pcs, Package Contents: Only the above package contents, excluding other products. size:Z size: 6.3*5cm, diameter 1.2cmT size: 4.7*3.6cm, diameter 1cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) Color: silver (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)