The RAPALA Fillet 'n Carry is designed with a unique routed bottom that fits securely on 4, 5 and 6 Gallons buckets. Large enough for any filleting task. Large oval hole to pass waste into bucket below. This board includes knife slot, beverage holder and juice groove to eliminate spillage of liquids. HDPE food grade plastic.Routed bottom fits 4, 5 & 6 Gallons bucketsLarge oval hole for wasteKnife slot, beverage holder and juice grooveHDPE food grade plastic