Stair Sweeper by Kristin

Design Features

It uses a brush to clean the stairs. It starts at the bottom right side of the stairs, then it lifts itself up a stair. It goes to the right side of the stair then it lifts itself up another stair and goes to the left side of the stair. It does this until it reaches the top stair. 

Safety and Disposal

You have to though the batteries in the garbage.