The BLOCK® Invasion archery target offers 4-sided shooting for increased target life. The BLOCK® Invasion target is a simple, yet revolutionary conceptualized product that has changed and set the standards for the way archers practice. The front and back of the BLOCK® Invasion target has an open-layered design that stops arrows with friction, not force. The patented friction layered deisgn allows arrows to enter between open, unglued layers of friction foam.