XIANQI Sturdy ; roller: The core slider of our ; roller is made of sturdy stainless steel, and the handle is made of non-slip TPR and durable PVC. In addition, this material will not damage your carpet or hardwood floor or concrete. ; This design ensures your balance and stability, and will not shift left or right. This ultra-wide base design allows our abdominal muscle rollers to withstand high-intensity exercise, and you can take difficult postures to strengthen your abdominal muscles. ; A gift for fitness enthusiasts: our ; rollers are easy to assemble and use. Therefore, you can use it at home, and you can also take it to the gym because it is very portable. ; Our abs rollers are designed to train your entire core (abs, gluten, lower back muscles and obliques) as a whole. Our ; roller kit is an ideal health gift for Christmas, New Year, Thanksgiving, etc. Color: yellow Size: 30*16cm Delivery Quantity: 1 Piece