Made of fine quality TPE material, high strength and high resilience, environmental p-rotection and with comfortable hand feeling. Ergonomics TPE arc grip, improve grip posture, make your hands free from the infract of rub. Close-grained nylon weaving belt, help adjust the strength of muscle, change the situation of arm internal rotation or external rotation. Help reduce joint injuries, stimuliate muscle, injury prevention, and provides multiple functional training. You can have a try. Features: Made of fine quality TPE material, high strength and high resilience, environmental p-rotection and with comfortable hand feeling. Ergonomics TPE arc grip, improve grip posture, make your hands free from the infract of rub. Close-grained nylon weaving belt, help adjust the strength of muscle, change the situation of arm internal rotation or external rotation. Help develop more stabilization and body tension. Help reduce joint injuries, stimuliate muscle, injury prevention, and provides multiple functional training. Widely application, suitable for gym, indoor and outdoor excise. Perfect replacement for swinging ring. Two types optional, you can choose with/without l-atex tube, the increased flexible tube on the common grip to enhance the mobility. Specifications: Name: Training Grip Material: TPE Type: without tube, with tube (optional) Package size: 150 * 190mm / 5.91 * 7.48in Package weight: Without tube: 230g / 8.11ounce With tube: 460g / 1.01lb Packing List(Without Tube): 1 * Training Grip 1 * Storage Bag OR Packing List(With Tube): 1 * Training Grip 2 * Flexible Tube (20lb and 40lb) 1 * Storage Bag