Unique blade design provides you with two separate cutting edges, the first set of edges are used for cutting the hide and the first set of ribs. These blades are also used to open the broadhead and are much smaller than the main blades, the second set of edges, or the main blades do not touch anything during the initial penetration. Angled shots are not a problem with the Schwacker. Carbide tip and stainless steel blades. Practice head and DVD included.