The KT Pro EVA Foam Combination Wrench Set, No. 9-A1209SRE, features an EVA foam tray and combination wrenches with large visible markings that allow users to easily identify sizes for usage and storage. The wrenches are made from high quality heat treated chrome molybdenum alloy steel and are designed for precision and maximum strength. The foam tray is oil resistant, and all wrenches are backed by a lifetime warranty.