two layer rubber tile item no.:GT0200 size:500*500*15/20/25/30/40/45 material:crumb rubber weght:3.8/4.8/5.3/6.2/9/9.4kg interlocking rubber tile 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 and wrestling room, hotel corridor, ...