Dirt Devil Royal Feather Light Style 4 & 5 Belts 2 Pk Genuine Part # 1540310001 Dirt Devil & Feather Light Upright Vacuum Cleaner Style 4 & 5 Belts 2 Pk { 2 Belts Only } Fits With All Dirt Devil Using 4 & 5 Belts Genuine Part # 1540310001 Replace your belts every 3 to 6 months.