Provides cushioning for the legs and feet while promoting healthy movement and circulation 5/8" thick high-density rubberized gel foam; beveled edges to help prevent trips and curling of the mat Beveled edges prevent the standing mat from curling up Overall dimensions are 35" W x ...Provides cushioning for the legs and feet while promoting healthy movement and circulation 5/8" thick high-density rubberized gel foam; beveled edges to help prevent trips and curling of the mat Beveled edges prevent the standing mat from curling up Overall dimensions are 35" W x 19.5" D x 5/8" H. Features include a high-density rubberized gel foam and beveled edged to hep prevent trips or curling of the mat. Stand Up Desk Store is based in the suburbs of Chicago.