JFN #36 Pallet Rack Nets are made from 100% Twisted Knotted Nylon. Black net is coated with tar so t is UV and Weather Treated to last outdoors. JFN #36 Pallet Rack Nets are all hung on the square with a mesh size of 1-7/8". Each JFN #36 Pallet Rack Nets is reinforced with a 5/16" rope border with a spring clip at each corner. JFN #36 Pallet Rack Nets is made to order in the USA.