Material: Drum clamp cowbell memory lock is made of alloy material, which is strong, strong, wear and . How to use: After using the Memory lock, you can find the location time you disassemble and assemble it. Size: Overall 3.4cmx3.8cm/1.34inchx1.50inch, inner diameter 25mm/9.84inch. Features: Save time and energy during installation and removal. Applicable: Drum clamp can be used on most drums and is a good helper for bass drums. Colour:Black Material:Zinc Alloy Package Contents: 1 * Cymbal Stand Memory Lock 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.