Keyboard shelf 550 RWidth: internal 510 mm, external 560 mm,Depth: internal 250+50 mm (shelf + wrist support), external 430 mm.Fits all desk tops.Keyboard shelf 700 RHWidth: internal 650 mm, external 700 mm.Depth: internal 250+50 mmShelf + wrist supportFits straight desk edges and moulded tops E and G
