Keep your ice fishing hole open for business with this Frabill Vypr Aerated Tip Up. High visibility. High sensitivity. Ready to work in deep-freeze conditions. Built-in battery-powered aeration system keeps water moving and prevents ice from reforming. Built-in aerator keeps ice from re-forming Ball bearing Inline reel for increased sensitivity Flap trip indicator light for visibility Fits up to a 10 inch hole Clear-view easy-access cover Hook keeper Uses (2) D batteries, not included