Application: The keys can be used in many different ways, for example in hard-to-reach places and are used, for example, for working on water tap, car, spark plug keys, plumbing etc. Contents: The set contains three hexagonal sockets in the sizes 8 x 9, 10 x 11, 12 x 13 mm. Material: The tube sockets are made of hardened tool steel, which is particularly robust and can be combined with other keys. The surface is matte chrome to prevent scratches and damage to the tool. DOUBLE TUBE WRENCHES WITH LABEL: Each size of pipe wrench for fitting nuts is labeled with the exact size., Weight: 0.6393405598 Pounds, Manufacturer: CCLIFE