Ergonomic Design: The A-type design of this hand grip strengthener provides a comfortable grip and allows for a natural hand posture, reducing hand fatigue during use. High-Quality Material: Made of high-density sponge material, this grip strengthener is durable and provides a soft yet firm grip for effective arm muscle training and hand exercise. Adjustable Resistance: The resistance of this hand grip strengthener can be adjusted to fit different levels of hand strength, making it suitable for both beginners and professionals. Portable and Lightweight: Compact and lightweight, this grip strengthener is easy to carry and can be used anywhere, whether at home, in the office, or while traveling. Versatile Use: This hand grip strengthener can be used to improve grip strength, wrist strength, and forearm muscle endurance, making it an essential tool for athletes, musicians, office workers, and anyone looking to improve their hand strength. Weight: 80g Color: red, blue, green, gray Material: PP+spring steel Quantity: 2pcs sponge type A grip wrist strength device Specifications: fingerprint models, stripe models, solid color models