The Cold Steel Brooklyn Crusher impact tool is precision injection molded out of heavy-grade polypropylene to make a virtually unbreakable bat. There's no need to worry about shards of wood flying in your face. No matter what you hit or how hard you swing them, they just won't break and the Crusher is durable too, they won't rot, crack, or splinter, or even fade. You can treat them as roughly as you choose. The Crusher can be used in an emergency, as an extremely effective self-defense tool. You can keep one behind the front door, under the bed, or in a car trunk and forget about it until you need it.