Features: High quality: Made of high-quality and ABS material, comfortable and slip resistant. Our grip enhancers will make your movements more comfortable. It won't damage your hands and fingers, which will bring you an excellent user experience. Counting function: Our hand extruders are equipped with mechanical/electronic counting functions, which record your exercise-times every-time. Help you better understand the training progress. Adjustable resistance: 10-100kg resistance can be easily adjusted as needed. It can be-matched with your various grip training to solve your hand, finger, and forearm problems. Multipurpose: Grip strength enhancers is very suitable for increasing the strength, strength, and speed of the wrist, fingers, and forearm. It is not only the great choice for rock climber, athlete, and musicians to enhance finger and wrist flexibility, but also very suitable for people with wrist fractures. Whether you are a woman or a man, a child or an adult, a beginner or an experienced person, you can start grip training any-time and anywhere. Easy to carry: Our grip strength training device is super portable and can let you exercise at homes, in the car, in the offices, etc This can help you exercise more and exercise your muscles faster than before. Specifications: Material: ABS+precision steel Style: Mechanical counting/Electronic counting Color: Black/Blue-color/Green-color Size: As shown in the picture Force: 10kg-100kg Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Hand Grip Strengthener