Set includes: 8, 10, 11, 12, 13, 14, 15, 16, 17, 18 & 19mm spanners Each spanner features open jaw and 12-point ring ends; two tools in one. Manufactured from high-grade Chrome Vanadium Steel with chrome mirror finish. Designed to be strong, with absolute minimum flex, meaning all force is transferred through the spanner. Lightweight and comfortable in use, reduces user fatigue. Supplied in durable compact tool roll, with carry handle, for convenient storage, spanner protection and easy transportation. Tool roll features clear size markings, to keep spanners in order and easy to locate the right size. Lifetime warranty* on spanners.