This portable light tension guitar Extend-O-Grip hand exerciser is designed with small and exquisite appearance， easy and convenient to operate， it can increase your finger speed， strength and independence， suitable for the auxiliary exercise of instrument playing， physical exercise and other activities.Description:Small and exquisite appearance， light weight， easy and convenient to operateUse the hand exerciser to warm up before playing and to strengthen and stretch the fingersUnique ergonomic design allows you to exercise fingers， wrists and forearms while practicing the correct action for playing musical instrumentsPractice without your instrument anywhere anytime， increase finger speed， strength and independence.Compact and light design， can carry it in your pocket， bag or instrument caseDesigned for all instrumentalists， from beginners to professionals (This 5 pounds light Tension Guitar Extend-O-Grip Hand Exerciser is mainly designed for more advanced players. For beginners and young players， you can exercise from extre light tension Extend-O-Grip Hand Exerciser first)Suitable for the auxiliary exercise of instrument playing， physical exercise and other activitiesColor: Green and greySize(W x H x T): Approx. 8.5 x 7.1 x 2.1cmPackage Includes:1 x Guitar Light Tension Extend-O-Grip Hand ExerciserCaution: All players should begin each exercise or warm up session slowly. Sudden rapid repetitions could result in strain or injury. Keep out of reach of children. Do not expose the Extend-O-Grip Hand Exerciser to heat sources or extreme temperatures.