♥Design for athletes and sports enthusiasts who want to increase their hand, wrist, forearem and finger ♥strength for rock climbing, shooting,bodybuilding, golf, tennis etc. ♥The easily adjustable dial and wide range of tensions make the hand exerciser a popular choice for those ♥with arthritis, rheumatoid arthritis,tendonitis, carpal tunnel, tennis elbow and those recovering from a broken wrist and tendon surgery. ♥Great hand strengthener for musicians including drummers as well as guitar, piano and violin players. Name: Strength Measurement Meter Material: Plastic Color: Black + Blue Size: 10.5*15cm/4.13*5.91inch Weight: 150g Contain: Strength Measurement Meter*1 NOTE: ★Due to differences between different displays, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the picture. ★Due to manual measurement and different measurement methods, please allow 1-3cm deviation. Thank you!★Due to manual measurement and different measurement methods, please allow 1-3cm deviation. Thank you!