Faithfull Ratchet Combination Spanners have a premium quality, chrome vanadium steel construction for high performance, strength and durability. The spanners feature ratchet heads with flexibility allowing them to turn through 180° for ease of operation at any angle for hard to reach places. The spanners have a 72 fine-tooth mechanism for effective use. A handy arrow is etched into the spanner to clearly display the direction of torque. This Faithfull Ratchet Combination Flex Head Spanner Set consists of the following sizes: 8mm, 10mm, 13mm, 17mm and 19mm.