Heavy duty rigid case with 137 pieces and 3 drawers.Metallic case composition aviation mechanics foam set.Drawers open 100%.Drawer blocking system for greater safety.Reinforced aluminium cover.Contents: FF3A14, FF3A15, FF3A16 and FF3A17 foams.Consists of sockets, wrenches, screwdrivers, pliers, punches, 1/4", 3/8" sizes.Suitable for all large airplanes