Big roll-off area for 18" frames. One-gallon working capacity saves time. Green polypropylene resists solvents and paint buildup. Handy edge compartments hold brushes and tools. 16" l x 21" w x 4" d.Big Ben® Solvent Resistant Paint Tray, 1 gal, 16 Inch L x 21 Inch W x 4 Inch D, Copolymer Polypropylene