Package of (1) Replacement Panasonic UB8 Belt. Panasonic Vacuum Cleaner UB-8 belts fits models that begin with MC-50**, MC-52, MC-53**, MC-55**, MC-57**, MC-68**, MC-69**, MC-73, MC-V50**, MC-V52**, MC-V53**, MC-V55**, MC-V57**, MC-V68**, MC-V69** and MC-V73**. Replace this belt every 3 to 6 months to ensure optimum performance.