The Block Infinity is built around a reputation of long-lasting durability, the Infinity locks in a new level of extreme stopping power and extended target life with exclusive construction and six-sided shooting.Leveraging the proven stopping power of Block's PolyFusion Technology Block Infinity targets are constructed around a high-density layered-foam inner core encased with an exterior foam wall that delivers extreme stopping power and exceptional durability, while still offering easy arrow removal. This exclusive technology allows the exterior face to assist in slowing arrows, while letting them find a path between the internal layers to stop with friction and not force. The six-sided exterior features six individual shooting faces with five unique designs strategically-placed to offset aiming areas for extended target life and maximum durability. Safe for use with field points and both fixed and expandable broadheads and guaranteed to stop standard diameter arrows administered ...