Trophy Ridge's HXL Rest uses exclusive vertical drop technology and a limb-driven design that eliminates timing issues for enhanced reliability and accuracy. 100% arrow containment at all times ensures your arrow is ready when you're presented with the perfect shot. Limb-driven design works with either the bottom of the limb or the upward-moving cable. Removable containment arm allows use of larger-diameter arrows. Linear bearings provide smooth, silent operation. Solid 6061 T6 aluminum construction.