The RIP SS is the pinnacle of hunting arrow technology, a bone-crushing, small-diameter shaft with stainless steel layers infused into a 90 carbon fiber weave. The RIP SS is lighter and faster than its predecessor, the Xtorsion . With higher FOC and the same sledge-hammering momentum, this shaft will punch through anything in its path and is sure to stay straight shot after shot. Product Specifications Spine: 300 Shaft Length: 31" Straightness: +/- .003"