This is a combination dusting brush & upholstery tool for the Bissell Healthy Home, and Heavy Duty models. The attachment has a slide off brush that can be used for dusting furniture or electronics, and can slide off to be used a simple upholstery or stair tool. Fits Bissell Healthy Home, and Heavy Duty models; 5770, 5770-5, 5770-8, 5770-P, 5990, 6100, 6405, 50C9, and more. Genuine Bissell part number 203-1365.