✔【Material】High quality and high density foam roller，Provide soft, comfortable and strong support. ✔ 【Compatibility】Metal tubes with an outer diameter of 0.87 in/2.2 cm to 1 in/2.5 cm.Used for inversion tables, weight benches,weightlifting tables,bench's leg curl, leg extension, butterfly (pec dec) , most exercise machines. ✔【Size & Shape】Length: 5.71in/14.5cm,outer diameter: 2.95in/7.5cm, aperture: 0.87 in/2.2cm. The product is bone-shaped and hand-polished. There may be an error of 0.1cm to 0.5cm in length and outer diameter, which does not affect the use. ✔【Package Contents】:2*Foam Foot Pads.Sold in Pair. ✔ 【Installation Requirements】For convenient and quick installation, please brush some water/soapy water on the steel pipe as a lubricant. It is suitable for all kinds of indoor sports equipment. Please check the pipe diameter and suitable length of your equipment when purchasing. Avoid affecting your shopping experience.