... :500*500*15/20/25/30/40/45 material:crumb rubber weght:3.8/4.8/5.3/6.2/9 ... , swimming pool, staircase, stadium stand, locker room, wharf, scaffold footpath,basketball courts, tennis courts, volleyball courts, football courts and athletic tracks ... installation.13. Easy maintenance.14. Beautiful appearance, stable, plain colorful rubber tile