Danielson Jumbo Fish Mouth Spreader Danielson Jumbo Fish Mouth Spreader 9" Black MADE OF SPRING STEEL Tools - Danielson Jumbo Fish Mouth Spreader 9" Black. Made for large, heavy-mouthed fish, this jumbo fish mouth spreader holds the fish?s jaws wide open while you easily remove the hook or clean and scale your prize. A snap to use, simply insert the spreader into the fish mouth, turn and disengage the spring-loaded jaws. Made of spring steel and finished in black enamel to resist corrosion. Retail packaged w/UPC