FilletMaker Fish Fillet Cutting Board 31"x21" Raised fillet surface that allows for pressure and clearance of fillet knife or electric knife to make a clean swipe of each fillet. Tapered grooves allow liquid waste to drain towards channels. Large channels to hold waste drainage. Huge pocket to store your finished fillets, or put fillets in a bowl and use area for waste. Huge 31"x21" board with 22-1/2"x10" raised fillet surface.