Easy to assemble special mat and tray makes puppy training easyTray composition - Durable artifical turf which attracts dogs, perforated drainage trayUnique indoor training system which allows dogs a place to relieve themselves when they are unable to get outsideSize: 18.5" x 13.4" x 2"This ingenious mat and tray training system with artificial turf attracts dogs so they cab be taughtly quickly that it is an acceptable spot for relief. Great for house dogs. Please e-mail me with any questions