https://www.ebay.co.uk/itm/Fully-Adjustable-Parallel-Jaw-Wood-Working-Clamp-95X600-Clamping-Force-600-kg-/402586533452?_trksid=p2349624.m46890.l49286
I bought these recently, very pleased with them, although I can't compare to more expensive clamps they seem to do the job great. I bought 600...