Brand new, unused item. These are weighted insoles. Simply insert them into your regular shoes and walk to improve your basic physical strength. They help with shaping up by burning body fat and building lower body muscle strength. Furthermore, they are antibacterial, deodorizing, and anti-mold treated. They use special weight rubber, giving them three times the durability of conventional products, and they are also elastic. You can cut them with scissors to fit your foot size. 【Size & Weight】 Thickness: 5mm Free size, weight目安 (per pair) 27cm (approx. 840g) 25cm (approx. 750g) 23cm (approx. 650g) / per pair. Although new and unused, the box has discolored. I took them out of the box briefly for the photos. Please refrain from purchasing if you are concerned about minor details. Soft Shoes Weight RB Weighted Insoles 7-21 0005 3-1