Lincoln Electric Expandable Welding Screen/Curtain Frame - 6 x 6 ft/6 x 8 ft; K4654-1-816 GAUGE Industrial, heavy wall frame construction provides stability while preventing dents or bends ADJUSTABLE DESIGN 2 Feet expansion inserts easily snap into frame to expand width to 8 feet for larger coverage needs. Inserts are included with frame. MODULAR Optional accessories available which allow for addition of caster wheels and or connections of multiple frames. Frames are designed to work with a variety of Lincoln Electric screens curtains