4pcs Drum Keys with Continuous Motion Speed for Key Universal Drum Tuning for Key Percussion Instruments Parts Features: brand new and high quality. Made of high quality chrome-plated steel construction, solid and durable to use, lightweight for easy carry. Perfect for all drums with standard 1/4" socket square tension rods. Includes 3 standard drum keys and 1 continuous motion speed drum for key. The spinning camber design of the continuous motion for key makes it for ideal for quickly and easily removing and replacing drumheads. FUNCTION: essential drum accessory will make sure your drum skins are for always in fine tune. Specifications: Color: silver Material: chrome-plated steel Size: 4.6cm/1.for 81"3.6m/1.42" Quantity: 4pcs Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 4 Drum Keys