Model AHF-03 Quantity 1 Piece(s) Color Black + grey Material Plastic Compatible Models Guitar mode Application Guitar capo Functions Use it to warm up before playing and to strengthen and stretch the fingers; Unique ergonomic design allows you to exercise the fingers wrists and forearms while practicing the correct action for playing musical instruments; Increases finger speed strength and independence; Practice without your instrument anywhere anytime: compact and ultra-light design means you can carry the griper in your pocket bag or instrument case; Hold the Griper in either hand and place your finger-tips on the tops of the buttons. Push the buttons down independently or all at once. Other Feature Tension range: 4Lb - 7Lb; Dimension: 85 x 69 x 21mm; Weight: 74g Packing List 1 X Guitar finger strengthener