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 design 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 design 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.