Capacity: 19-51mm (3/4″-2″) 1 Piece Hook Wrench. Capacity: 32-76mm(1-1/4″-3″). Capacity: 51-121mm(2″-4-3/4″). Capacity: 115-170mm(4 1/2″-6 7/10″). Width: 12mm，Square Head Thick: 5mm, Head Thickest: 15mm, Max Opening: 35mm, Handle Length: 125mm.