BR412-21 Features: -Paint tray.-Big roll-off area for all 18" frames.-One-gallon working capacity saves time.-Designed with added stiffness to allow the roller cover to be loaded with paint more evenly.-Handy edge compartments along the back of the tray hold brushes and tools safely off the floor.-Green polypropylene resists solvents and paint buildup.-16" x 21" x 4".