Knipex big twin tool case empty 490 x 255 x 410mm knipex 00 21 40 t this rolling case trolley from knipex is the perfect solution for transporting a heavy tool box featuring a telescopic handle and compatible with cases 00 21 40 le and 98 99 14 features include a height adjustable handle with catch integrated mechanism for fixation to the case and rapid assemblyremoval with two smooth castors knipex 00 21 40 t trolley for rolling case transport