MATERIAL: Metal construction, solid and durable to use, lightweight for easy carryFITS- all Drums with 1/4in Socket Square Tension RodsCONTINUOUS MOTION SPEED KEY- a handy speed key, which is terrific when changing drum headsPRACTICAL- great for adjusting the tension rods on drums for the desired pitchThe regular keys have the right size, weight and feel for tuning drums, plus there's 3 of them, in case you lose one (which you probably will ). It also comes with a handy speed key, which is terrific when changing heads.FUNCTION: essential drum accessory will make sure your drum skins are always in fine tunecolour: SilverMaterial: MetalPackage Contents: 4 * Drum KeysOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.