Northland's Flipper Dipper is great for quickly clearing slush from ice fishing holes when searching for all types of gamefish. The 8-10" hole diameter match auger size. Plunge Flipper Dipper into freshly drilled hole. Hinge system automatically folds dipper back when passing downward through ice and deploys to remove slush with upward motion. Features Sports an innovative hinge system that opens when passing through slush and closes to remove slush from the hole High-impact plastic Resists Freeze-Up