Built-in 5-1/2 in W roll off area. Ledge at top catches excess paint and returns it to pail. Magnet inside holds a brush ferrule. Security strap automatically expands to allow room for larger hands. Side indents provide better grip and control. Soft-feel elastomer adds more comfort. Durable, 1-piece polypropylene construction resists solvent and paint build-up. 8-1/2 in x 7 in x 6-1/2 in.