For medium sweeping. Effectively cleans smooth and semi-smooth surfaces. For indoor/outdoor use under dry/wet conditions. Suitable for high-temperature surfaces or debris. Good chemical resistance. Available with 3" or 2 1/2" trim. 2 7/8" wide and 7/8" thick wood block. All blocks come with two threaded handle holes, allowing you to extend the life of your brush. Order threaded handles separately.