Highlights: Material: Plastic Steel Color: Yellow, Blue, Green, Red Training methods: Hold the grip with one or both hands, hold for two or three seconds, then release(for more effect) and repeat. Type: A Type Gripper Function: Comprehensive Fitness Exercise Product Description: Designed according to the shape of human hand, use different exercises such as single hand, two hands, upper grip, lower grip and double grip. Small and light in size, easy to carry, free from any restrictions when using, can exercise your strength at any time, relieve fatigue, use muscle solid, strong muscle, enhance blood circulation, long-term use, for the prevention of rheumatoid arthritis, is an essential small equipment. What’s in the box: 2 x Hand Gripper Weight: 0.3 KG Colors: Blue, Green, Yellow, Red SKU: 190713065903-Blue 190713065903-Green 190713065903-Yellow 190713065903-Red