Foam interlock floor mats, with different sizes, thickness, desitiny, colors and patterns. There are sizes of 1m*1m, 0.8m*0.8m, 0.6m*0.6m and 0.3m*0.3m; the thickness has 1cm, 1.2cm, 2cm, 2.5cm, 3cm, 4cm and 5cm; there are normal desitiny, middle desitiny and high desitiny; the colors cover diversity of colors and patterns include leaves, five lines, cross, 回 shape, T shape, ocean, grass, wooden grain, carton, alphabet and letter, etc. All of the kinds can be customized. It can be used at Children's room, early education classroom, kindergarten, Taekwondo training, military arts, gym, dance classroom, yoga studio, playground naughty castle, etc.