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 spinning camber of the continuous motion key makes it Perfect for quickly and 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 drum kit. This economical bundle includes 2 standard drum keys and 1 continuous motion speed drum key. money, 4 drum keys for the of one. The spinning camber of the continuous motion key makes it Perfect for quickly and removing and replacing drumheads. Color: Silver : 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 and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.