• Function: used to turn the drum screw and adjust the tension of the drum surface to modify the sound. • Material: high-quality and durable metal, not easy to break. • Unique design: fine workmanship and delicate design with a smooth surface. • The handle head can be rotated, making the drum tuning key very useful to use. • Condition: 100% new. • Approximate weight: 100g. • Size: 4.7 x 3.5 x 1.3 cm. • Inner diameter: 5.5mm. • Color: silver.