Drum Key are made of high quality chrome-plated steel construction. Industry standard for all drums with 1/4 inch socket square tension rods Includes 3 standard drum keys, and 1 continuous motion speed drum key Perfect for all drums with standard 1/4 inch socket square tension rods. The camber design of the continuous motion key makes it Perfect for quickly and easily removing and replacing drumheads. drum keys made of high quality chrome-plated steel, and are fit for all drums with standard 1/4 inch socket square tension rods whether electronic drum kit or traditional drum kit. This economical bundle includes 2 standard drum keys and 1 continuous motion speed drum key. money, 4 drum keys for the price of one. The camber design of the continuous motion key makes it Perfect for quickly and easily removing and replacing drumheads. Color: Silver Quantity: 4 PCS Material: Chrome-Plated Steel Packing size: 12*8cm package included: 3 x Standard Drum Key 1 x Continuous Motion Speed Drum Key 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.