Brush Roll for Kirby Avalir Ii, Soft, Helix Design Vacuum #152517The soft helix design brush roll for the Kirby Avalir II puts the right agitation back under your machine gentle enough for delicate carpet fibers, engineered to the factory spec that keeps the Avalir II performing at its best. Soft bristle helix design provides thorough agitation while being gentler on carpet pile than stiff bristle alternatives OEM replacement part built to the same specification as the original brush roll in the Kirby Avalir II