Item Type: Elastic Fitness Bar Material: Glass fiber, foam Gross Weight: 600g / 21.2oz Package List 1 x Elastic Fitness Bar 1High Frequency Vibration: Through high frequency vibration, the loose muscles can be shaken. The deep trunk muscles, abs, shoulder muscles, connective tissue, and beyond are all strengthened at the same time. 2Muscle Exercise: Through exercise, your abdomen and buttocks will become tight, chest and triceps will be exercised, and metabolism will be promoted in the long term. 3High Strength Materials: The elastic fitness bar is made of high strength fiberglass, which has strong toughness, sturdy and will not break, ensuring safe use. The non slip hand grip is made of rubber for a comfortable feel. 4Fitness and Body Shape: This elastic fitness bar will beautify your body posture, strengthen your back muscles, in addition to giving you a healthy physique. 5Detachable and Portable: The elastic fitness bar can be disassembled into 2 sections, which is extremely convenient for storage. You can easily storage it without taking up too much space.