The Monument 4562P GRIP+ is a pair of stepped 8, 9 and 10mm & 11, 12 and 13mm Nickel Plated Hexagonal Fittings. They can be connected to the Monument 3240U and the 4537G GRIP+ shorty swivel handle, extending the reach of the Monument 3240U box spanners, for easier access to Monobloc tap back nuts.