French tool company Facom are renowned for the quality of their sockets and the detection box is a concept that helps to ensure you don't lose them! Windows built into the lid of the case let you quickly check the contents even when the box is closed, and the contrast interior instantly alerts the user to any missing components. Not only does this help prevent the loss of company or personal property, but minimizes instances of foreign object damage caused by tools left in the work area.Includes:1 x high performance sealed 3/8" locking ratchet: JL.171.14 x 3/8" metric 6-point sockets J.H 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 21 - 22mm.2 x 3/8" locking extensions: L 125mm (J.210RC) - L 250m (J.215RC).1 x 3/8" universal joint: J.240A.1x Detection box case: BV.J1NANOA Specificationsweight: 2.100kg