This Teng Tools ratcheting combination spanner combines an open ended spanner with a 72-tooth 12-point ring ratchet. The ratchet has a \'flip reverse\' feature, which switches the direction of the ratchet, and it is offset at a 13° angle for ease of access. Both ends are of the same size. The spanner is made from chrome vanadium steel for strength and durability, and has an attractive satin finish.1 x TEN600519R Ratchet Combination Spanner has the following specifications:Size: 19mm. Length: 248mm.