Bowfishing just became a whisker more fun! The Trophy Ridge Bowfishing Whisker Biscuit is a great way to keep arrows secure on your bow when bowfishing. Trophy Ridge (Bear Archery) manufactures the world's most-used arrow rests, and they prove their expertise with this Bowfishing Whisker Biscuit. Trophy Ridge has specially designed this Whisker Biscuit for bowfishing with rustproof stainless steel hardware. Plus, they've added a rock-solid, dual-bolt mount. It's easy to set up... simply attach the Whisker Biscuit to your riser plunger hole and it automatically lines up the arrow rest. Biscuit size: 0.36 inner diameter. Outside Arrow Diameter should be 23/64 or smaller. Use unfletched fishing arrows only. Do not use with fletched bowfishing arrows. Damage to biscuit or fletching may occur.