Top of the Defender range, the 400 has robust castor wheels and two lockable for enhanced maneuverability. The kit includes ISO25980 welding strips, available in either red or green. The strips are interlocked using click studs and are attached to the header rail using ring clips. 
 
To upgrade this to a Defender 500 after purchase pivot arms can be added. Please click here. 
 
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Industrial welding screen designed to protect from welding flash and ignition
PVC curtain is 0.4mm thick
Curtain dimensions: 1960MM (6FT 3") W X 1600MM (5FT 3") H
Frame type: 33MM DIAMETER BLACK POWDER COATED STEEL TUBE FRAME
Outer frame dimensions: 1960MM (6FT 5") W X 1900MM (6FT 3") H
Weight:  20.5 KGS
Curtain spec: 1 PACK OF WELDING STRIPS AND CLIPS. 
ISO25980 regulation for welding safety.