size:500*500*15/20/25/30/40/45 material:crumb rubber weght:3.8/4.8/5.3/6.2/9/9.4kg Size: 500x500, 300x300, 1000x1000, etc. Thickness 10mm, 15mm, 25mm, 35mm, 45mm, 50mm, 55mm, etc.Filed of application: office, conference hall, exhibition hall, training center, shopping mall, exclusive agency, colleges, kindergarten, martial arts room, entertainment places, arena, fitness center, gymnasium, Judo ...