Description: Comfortable Surface: Made of stainless steel, can be disassembled, go out to carry, the design is very convenient, the grip is made of foam cotton, which is very comfortable to pick up and makes fitness more relaxed. Size: Diameter 2cm, Length (19.7in / 50cm), (27.5in / 70cm), (31.5in / 80cm), 3 sizes for you to choose according to your needs. How to Use: First twist the rocker in pairs, then put the rocker into the button to fix it, and finally put the rocker behind you to slowly tighten your head and keep it tight. Application: This set of yoga sticks can be used to correct hunchback, help yoga practice and physical training, correct bad body postures. Multipurpose: Yoga assistance, suitable for shoulders, back and legs, for shoulder opening, breast expansion, massage, etc. Specification: Material: Stainless steel and sponge Color: As shown Size: As described Use for: Back Correction Type: Yoga body correction stick Size Chart: 2cm x 50cm/0.79inch x 19.69inch 2cm x 70cm/0.79inch x 27.56inch 2cm x 80cm/0.79inch x 31.50inch Package Includes: 2* Yoga Poles 1* Fixing Buckle Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!