CanDo Digi-Flex Hand Exerciser With Spring by CanDo develops isolated finger strength, flexibility and coordination. Stronger fingers cannot compensate for weaker ones. Progressive, color-coded resistance gives positive feedback. Use each button independently to exercise fingers, or compress the entire unit to complete hand and forearm strengthening.Product Specifications•Develops isolated finger strength•Stronger fingers cannot compensate for weaker ones•Progressive, color-coded resistance gives positive feedback.•Use each button independently to exercise fingers•Comes with illustrated manual.Size and Quantity•Each, Tan, 75 Lbs.•Each, Yellow, X-Light Strength (force to compress finger/hand: 1 ½" lbs./5 lbs.).•Each, Silver, 11 Lbs.•Each, Gold, 13 Lbs.•Each, Red, Light Strength (force to compress finger/hand: 3 lbs./10 lbs.).•Each, Blue, Heavy Strength (force to compress finger/hand: 7 lbs./23 lbs.).•Each, Black, X-Heavy Strength (force to compress finger/hands: 9 lbs./31 lbs.).•Each, Green, Medium Strength (force to compress finger/hand: 5 lbs./16 lbs.).
