WIN MAX Multifunctional Super Power Twister Arm Exerciser Device Grip Fitness 20KG   Description: The mechanism supports your arm and wrist for maximum safety and comfort, which is good for strengthening your power. Main Features: - Made of high-grade carbon steel spring, durable and practical - Ergonomic product design, make you feel more comfortable - ABS cover on the joint, avoiding hurts from the spring - Ideal for working on your wrist, forearm, chest, arm and shoulder - Fantastic gift for your partner or friends   Package weight: 1.088 kg Product Size(L x W x H): 60.00 x 3.00 x 3.00 cm / 23.62 x 1.18 x 1.18 inches Package Size(L x W x H): 61.00 x 4.00 x 4.00 cm / 24.02 x 1.57 x 1.57 inches Package Contents: 1 x Power Twister