Description: 【Multifunction drum tuning tool】: Drum Key is designed for adjusting drum tension, suitable for changing drum heads or fine tuning the sound. It is suitable for manual operation, providing precision and ease of use 【Metal construction】: Drum Tuning Key is made of metal to ensure durability and reliability with every use 【Compact size】: Drum Tuner Wrench's size is 7.7cmx4cm/3.03inchx1.57inch, this tool is small and easy to operate, and can be conveniently stored in your drum kit or music bag 【Must have accessory for drummers】: Whether you are a professional drummer or an amateur, Drum Tuning Tool is an essential accessory to help you keep your drums in the condition 【Portable and easy to carry】: Drum Accessories is suitable for being placed in a bag or rehearsal venue as a backup Size Chart: 7.7cmx4cm/3.03inchx1.57inch Package Includes: 1 Drum Key Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.