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