The AC54-JC lock-in job caddy expands your work surface and customizes your ladder top. Holds large or odd shaped items like fluorescent bulbs or ceiling fan blades. There are four storage compartments to keep small parts separated. Holders for screwdrivers, pliers, putty knives and towels. End hook is built in for increased convenience. There is also an integrated Lock-In System? socket for adding an additional paint cup (AC27-P), Tool Lasso? or utility hook (AC56-UH).