These entrance mat tiles are just one piece of three. The corner and pieces are also available from Hubert. The individual pieces easily link and stay together. Exclusive rubber reinforced face nubs that prevent pile up from high traffic areas. These entrance mat tiles are ideal for elevators, entry ways and lobbies. The 24 oz solution-dyed polypropylene fabric face is fast drying and stain resistant. Each of the entrance mat tiles measures 18 x 18 and has a thickness of 7/8".