The Green Calder Post Box by G2 is made from galvanised steel making it rust resistant and ensuring it is protected from harsh weather conditions when used outdoors. The Calder Mail Box incorporates a top loading letter slot suitable for A4 mail which is fitted with a protective flap which hides the key lock and helps protect from rain. The modern Green Calder Post Box also includes a fixing kit and pre-drilled holes in the rear making it suitable for wall mounting.