Whether you work in roofing or flooring industry or are just looking for an aid working in garden or on home improvement projects this pack contains a pair of knee pads and a pair of attachable non-marring caps that will help protect your most important asset you! knee pads are designed to be hard-wearing duty 1680D polyester fabric has been tested up to 7 000 abrasion cycles so you can feel confident knowing they can hold up against a wide variety of surfaces ranging from construction site concrete and subflooring to at home hardwood and tile. compression gel core is further padded with EVA foam to help to both absorb hard impacts and disperse bodyweight. inner layer’s lightweight water-resistant compression gel and EVA foam construction pads and conforms to your knees for a comfortable fit and single neoprene strap design makes them a breeze to put on and take off. When working on delicate surfaces included non-marring caps can be attached using built-in twist-to-lock anchors to add an additional layer of protection to your knee pads. These included caps are made of flexible TPE copolymer to shield delicate surfaces like hardwood and tile flooring from damage. When a task calls for working on your knees let PROLOCK knee pads take strain so you don’t have to.