EAST MOUNT Twister Arm Exerciser - Adjustable 22-440lbs Hydraulic Power, Home Chest Expander, Shoulder Muscle Training Fitness Equipment, Arm...

Adjustable ResistanceRotating the knob to easily adjust the resistance, rang 22-440 lbs free adjustment. Just rotating the knob, resistance can be adjusted, faster than car shifting. Durable MaterialDouble-layer steel tube is firm and durable. The material is strong and more realistic. The training machine has 440 lbs bearing capacity.