Whisker Biscuit® kept all the features that made it the most popular arrow rest in the world and made the changes bowhunters asked for. They made it tougher, lighter and more compact. The composite-encased Kill Shot Biscuit is 150% stronger than previous models. Use the laser-engraved marks to fine-tune the windage adjustments. You can also make elevation adjustments for even more fine-tuned shooting accuracy. The Whisker Biscuit's design makes setup easier than ever before. Simply attach it to your riser mounting holes and it automatically lines up the arrow rest. Custom rubber boots dampen noise during arrow load. Use in any climate since it delivers consistent performance no matter the outside temperature. For use with left- and right-hand bows.