ZVH1109 Features: * Alnico magnet adjustable welding link * Welding, brazing, soldering * Eliminates need for clamps or temporary fasteners * Alnico magnets retain force indefinitely * Wing nuts simplify angle adjustments * Dual alnico (aluminum / nickel / cobalt) magnetic blocks provide a combined 50 lbs of clamping power and are inherently unaffected by high temperatures * Blocks are linked together with a tempered steel bar