Box with 25 square finds with fins cnt03. to put inside the square legs of chairs, tables, bed legs or similar. they provide a layer of protection to the ends of the tubes, preventing them from being damaged, wear or damage to the floors and other surfaces where they are supported. for tubes with interior measurement 21-23mm and exterior measurement 25x25mm. the end has a height of 20mm. made of polyethylene, offers high resistance. its black finish is a good option to improve the aesthetics of the tube where it is installed.