Percussion accessories -zinc alloy drum tuning key drum set spinners tool set #2 square type Highlights generic brand zinc alloy drum tuning key drum set spinners tool set #2 square type Description: Alloy Drama Tuning Key Percussion Instrument Tuning Tool Essential tool for drumer, quick-loading handheld, tweaking your drums Ideal for adjusting the tension rod on the for the desired pitch Material: Zinc alloy Most portable and suitable drum kits, easy to use Hole diameter: 6mm / 0.23inch Size chart: W x H: 50 x 38mm / 1.96 x 1.49inch Package includes: 1 battery adjustment key Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be an error of 1-2mm.