Plastic unit is about 2 feet tall. Instructions for loading the bags is on the inside of the door. This worked pretty good when I was in an apartment with two cats, but the more cats, the less practical this was. In fair condition. Missing the scoop. Currently has no bags.
Bags are available for sale on Amazon for $21, search "litter champ." And available from Walmart.com.
It has a step open lid (similar to a garbage can) with the roll of bags inside. Tie the bottom in a knot and fill until full, tie off with a knot and cut. Start a new bag by tying the bottom into a knot.