Plastic Tray (PL.137) - for use with Facom J.310B and S.300B Steel Case module sets. Tray hold the S.306-100D torque wrench plus accessories. These trays will crack over time ....replacements are in stock and relatively inexpensive. The tray for sale is the one that fills the complete metal case and does not include the tools or the smaller accessory trays. This tray can also be used openly in a tool box/cabinet (without the metal case) to store this torque wrench and accessory components.