Product name:counting grip Product size: 16*11*2.2cm/6.29*4.33*0.86inch Product color: As shown in the figure Product material: PP product features: 1. Improve grip strength and injury recovery. Adjustable grip strength is ideal for strengthening hands, forearms, wrists, and fingers. It is simple and effective, helping to strengthen your grip, heal wounds, relieve stress, and improve endurance. Suitable for anyone who wants to develop and maintain strong and hands. This is a good hand strength training for patients with arthritis, tendinitis, carpal tunnel inflammation, and recovery from tendon surgery. 2. Adjustable resistance You can adjust it from 5 kg to 60 kg as needed. It only takes 5-10 minutes to complete at home or in the office every day. It is very suitable for athletes, musicians, rock climbers, tennis players, and so on. 3. High Quality and Durability - Our grip strength trainers are made of heavy-duty plastic and reinforced metal alloy materials. Unlike our competitors, the latter can fracture and even be made of low quality materials. Durable and safe, without damaging your hands and fingers, which will bring you an excellent user experience. Suitable for all hand sizes and portable design - whether you are a woman or a man, a child or an adult, a beginner or an experienced person, you can start grip training anytime and anywhere. Suitable for all age groups and all hand sizes. It is made of lightweight, high-quality materials, so you can easily carry it in your bag, pocket, and carry it with you. 5. Designed with anti-skid silicone, it allows you to use it without slipping your hands. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes: 1 pc grip strength trainer