The BlueSpot Flexible Ratchet Spanners feature 180 pivoting ratchet ring heads. Manufactured from chrome vanadium steel, heat treated and nickel plated for increased durability. They have a fully polished mirror finish. With 8 ratcheting increments to make the set ideal for use in tight spaces. This set contains the following sizes 8, 10, 12, 13, 14, 15, 17 and 19mm.