Finger Gripper Strength Trainer Extensor Exerciser Finger Flexion Extension Training Device With Resistance Band Finger StrengthFeature:Function: Finger flexion and extension training device, finger rehabilitationColor: dark green, blue, redSpecifications: 20 lbs (Green Color), 40 lbs(Blue Color), 60 lbs(Red Color)Material: silicone, alloy, clothApplicable scene: fitness equipment, rehabilitation trainingPackage Included:1 * Finger TrainerNote:1. Due to the indicator light and display screen, the product will have some errors in the actual product color. Hope you can understand and wish you a happy life2. The different colors of this product correspond to different strengths. You can choose the correct training device according to your needs.