Installing these foam foot pad rollers is easy due to their user-friendly design. Simply slide them onto the appropriate parts of your exercise machines for quick setup. They are easy to clean and maintain, helping keep your gym equipment in good condition and supporting an effective workout environment. Features - Color: Black - Material: Rubber, plastic, and foam - Size: 13.00 x 7.00 x 7.00 cm / 5.11 x 2.75 x 2.75 in (L) - Size: 12.00 x 7.00 x 7.00 cm / 4.72 x 2.75 x 2.75 in (S) - Ideal for home gym machines, providing comfort during leg extension and inversion exercises - Soft foam construction made from rubber, plastic, and foam, offering good cushioning and support - Suitable for leg extensions and various gym equipment, improving protection and comfort - Simple installation: easy to install and replace for convenient maintenance - Durable construction withstands frequent use without losing shape or support Package list: 4 x foot pad roller sleeve