This free-standing Protect-O-Screen® protects workers, material, and equipment from the hazards of welding sparks, spatter, and UV flash. Constructed with 3/4" crossbars and 7/8" corners and legs, the sturdy 18-gauge black steel, rust-resistant, enamel-finish, square tube frame is designed to eliminate the slipping and twisting that occur with round tube frames. Easy-Slide™ slip-fit connection permits quick and easy assembly without tools. The unique modular design allows addition, removal, replacement, and rearrangement of individual panels to quickly adapt to new requirements. Optional casters are available separately.