Which hair type is it good for? Straight Wavy Curly Coiled Tightly Coiled A firm, no-slip hairspray that keeps styles up all day (or all night), with a modern, touchable finish. Key benefits:- Creates a firm, no-slip hold - Keeps styles up all day - Leaves a brushable, touchable finish If you want to know more…Bumble and bumble's Strong Finish is a high-performance aerosol hairspray that provides a strong, firm hold with a modern, brushable finish.