Curtain Frame, 6 ft X 6 ft Expandable to 6 ft X 8 ft, Steel, BlackFreestanding, portable curtain frame is easy to assemble and can be used individually or in multiple units to form various configurations Providing sturdiness and strength, square steel tubing and bolted bracket system prevent slipping and twisting Combined with Best Welds safety fabrics, curtain frames provide protection for welding areas, machine shops, grinding and other safety applications Quick assembly design