Consists of 2 metal pieces. the first metal piece is placed on the ground and has 1 upright flap and 3 curved flaps which ensure the firmness of the adjustable pedestal and the tile. The second metal piece is located at the top of the adjustable pedestal and consists of 4 flaps which are downwards orientated to fix the tile on the side. The one flap that is up aimed serves to keep the top tile on his place.