Adjustable strap: 10-60 kg, can be adjusted for different users, suitable for men or women, adults or children, young or old. Mechanical count: it helps you count a lot of time for train with this handle. Ergonomic design: easy and comfortable to use this durable training equipment. And it can be worn and used anywhere there is no match at home, in the office, on the trip. It is a good match for hand strengthening exercises or finger muscles. Durable Material: Made of premium stainless steel, PP and TPR. Description Description Hand Finger Trainer with Counting Function - Dumbbell to Strengthen Wrist and Grip Strength with Range for Strength Training, Fitness, Rock Climbing. Item Type: Adjustable Counting Handle. Product Dimensions: 13cm x 15cm x 2.5cm. Product Weight: 140g . Product material: PP, TPR, stainless steel. Adjustable resistance range: 10-60 kg. Color: orange/grey - Perfect for beginners and advanced: easily adjustable resistance range from 10 to 60 kg and unique counting function (0 to 99). - The training device for the hand is made of plastic with rubber grips and guarantees ideal handling without slipping. - The use of top quality materials and extra strong steel springs guarantee a long service life with the trainers of fingers. - Pocket-sized, easy to carry and therefore ideal for everyday use, you can work out and build muscle anytime and anywhere you want. - It is widely used for most people, piano players, men / women, muscle regeneration, office workers, old people, young people.