dogpark 'place for short stops for dogs': film in iron / thickness 3 to 4 mm. with a surface area from a minimum of 25x25 cm. and 25x33 to 33x33cm.head on is from a minimum of 2 to a max of 3 holes of 0 to 10 mm. equidistant between them and placed on the foot plate.the holes pass through the screws fastening the head d