Product Name: Adjustable Grip Product material: ABS+metal Spring diameter: about 4mm/0.16inch Strength: about 10kg-100kg Size: length about 14.5cm/5.7inch, width about 2.3cm/0.9inch, height about 16cm/6.3inch Packing List: 1*Electronic Counting Grip Notes: 1. Due to the lighting effects and angles, there is a color difference in the product, please understand. 2. Due to manual measurement, there is a tolerance in the product size. MaterialGrip Strengthener is made of ABS and stainless steel, which has the characteristics of wear resistant and no rust, and supports peoples long-term use. Wide ApplicationsSmall in size, light in weight, durable and portable, suitable for use in offices, home gyms, business trips, travel and other scenarios. Multi-functionGrip Strengthener is portable and durable, can exercise the strength of wrist, forearm, palm, suitable for friends, colleagues, family members who like fitness. Non-SlipThe Grip Strength Trainer has non-slip handles and high-quality stainless steel springs, which make the gripper comfortable to use and help users exercise better. Grip Strengthener10-100KG adjustable, convenient to count your daily exercise and quickly take your strength to a new level.