For honing your aim or backyard plinking, Hellraiser Dust Devil BBs are an excellent choice. Advanced BBs are made of a special alloy blend that's 10% faster than and is designed to shatter on impact. That means no ricochets-and safer shooting. .177 caliber (4.5mm) 10% faster than traditional steel BBs Shatters on impact Provides less ricochet Lead-free and eco-friendly Includes 1,500 BBs Order today!