Effortless Catch Counting: This fish counter simplifies your fishing experience and helps you stay within catch limits; Drop your catch into the Mega Mouth and watch it register Versatile Fishing Companion : Designed to accommodate different species and sizes of fish, this fish counter accepts everything from Crappies to Walleye via a Mega Mouth funnel; It's the perfect partner for fresh, salt, or ice fishing Seamless Installation: Enjoy hassle-free setup thanks to a convenient self-mounting feature; Attaching this fun fish counter to standard bucket lids or cooler tops only requires an 8 1/4" hole Durable & Easy To Clean: Made from rugged ABS plastic, this catch counter fish cooler attachment is built to withstand fishing adventures; It's easy-to-clean design ensures it stays in top shape Fish With Confidence: The innovative design allows you to focus on fishing rather than counting; Count your catch effortlessly; remain within limits; and enhance your overall experience 90 day warranty Includes a 5 digit re-settable counter Opening measures 10' diagonally; Panfish Counter fits small 8" Perch to Slab Crappie and Gills