This is a single generic vacuum belt made by EnviroCare, EnviroCare specializes in making generic vacuum belts which will save you money, and still provide the same quality as a genuine vacuum belt.
These K229 Generic Kirby vacuum belts are designed to fit all Kirby Vacuums, including the Kirby Generation (G3, G4 and G5), Kirby Tradition and Kirby Ultimate G series vacuums. Belts should be checked often for cracks, cuts or loss in tension, a frayed or deteriorating belt will interfere with the vacuums performance.
These generic Kirby belts are made to replace the Kirby 301291 belt, and are sold individually.