Check the listing for details. Drum Tuning Key Quick Release Z-shaped Drum Keys for Drum Instrument 1PCS. Condition: New. Listed at 10.98 USD. What is this?Drum key is made of metal material, high hardness, no deformation, beautiful and practical, quick release drum key quick install drum plate .What will I get?Drum key, in size of:Z-shaped drum Key:60mm x 48mm x 5.5mm/2.36 inch x 1.89 inch x 0.21 inch(Total L*total W* inner W);In the package of :1 x Z-shaped drum KeyAre there any advantages of the product?Made of metal, strong enough .Quick release drum key quick install drum plate,compact and convenient,like just hang it on the key chain.How to use it?Drum key can be easily installed on both sides of drums, regulating the tension of the drum skin, allowing it to adjust pitch according to the tension of the drum .What should I notice?The size is measured manually, please allow the error +/-0.1 inch before purchasing.