Musiclily Plastic Cover Super Mini Mechanical Metronome for Musicians Piano Guitar, Black Dimensions: 1.2" x 2"x 4.3" / 30 * 50 * 110(mm) Tempo range: 40-208 BPM, Tolerance:&lt;=1% Material: Hard Plastic Outer with High Quality Metal Mechanism 100% New, great looks as the photo shown,Spring driven traditional metronome Package includes: 1 x Mini Metronome; 1 x Paper Box; 1 x Paper Instructions