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 plus shorty swivel handle, extending the reach of the Monument 3240U box spanners, for easier access to Monobloc tap back nuts.