AHF-05 Finger Grip Exerciser for Guitar / Bass / Piano Players Finger Tension Trainer Description: Brand:Aroma NO.:AHF-05 Size:About 91*68.5*21.5mm Weight:87g Color: Black,Orange Tension Range: 3Lb - 7Lb Functions and Features Fine structure design.inner mechanism by bronze material. visuable tension adjustment for better mastering strength limit. 3bL-7bL tension adjustment range to increase your exercise gradually. The best tool to strengthen your fingers,useful for all kinds of music players Warning:Using the finger exerciser should start from weak tension position,slow pace and less repeat time, and then increase gradually.Once that you feel pain or tired, stop exercise and start again when recovered Package Included: 1 x AGS-08 Foldable Metal Stand