Simple feet is an fixed way that welded the connecter on the rectangle sheet. The thickness of the metal plate is from 3mm to 10mm. The length is from 600mm to 9000 mm .The width is from 100mm to 160mm .The diameter of the connector clip is designed according to the diameter of the temporary fence frame . The height of the connector clip is from 100mm to 160mm.Usually the number of the connector clip is two. In the corner, we usually use three or four.