This part includes a metal axle, one black plastic base plate, and two black plastic wheels. It is designed to fit various Hoover Fold-Away and EmPower models. Fits Hoover Fold-Away modesl: UH40155, U5172-900, U5175-900, UH40185, UH40190 and U5161-900. Hoover EmPower models: U5265-900, U5262-910 and U5269-900