1、Made of good quality material, solid, ​durable and sturdy, ensure a long time use. 2、Suitable for tuning most drums​. 3、Delicate workmanship with good texture, smooth surface for you to use. 4、With a carabiner, easy and convenient to carry. 5、Used to adjust the tightness of the drum skin, great kit for drum. Features: Made of good quality material, solid, durable and sturdy, ensure a long time use. Suitable for tuning most drums. Delicate workmanship with good texture, smooth surface for you to use. With a carabiner, easy and convenient to carry. Used to adjust the tightness of the drum skin, great kit for drum.   Specification: Material: Copper alloy Color: as picture shown Size: Approx.  5.6cm x 3.8cm x 1cm /  2.2* 1.5* 0.39in Weight: Approx. 45g   Package List: 1 x Drum Tuning Key with Key Ring