The Ultimate Outdoor Vehicle comes with one hatch and cover included. You can add up to 3 additional hatches and covers for a total of four. This is a proprietary hatch design with cover that gives you direct access to the ice from inside the vehicle. Unused holes are covered with a blank cover plate that can be upgraded to hatch/covers later if desired. Each cover locks and unlocks with an 1/8 of turn. The hatch ears are adjustable to ensure water-tightness.