This kit is great for collecting dust from machines without built-in dust ports. With two different end nozzles and hose end fittings, convert the 2-1/2" X 12" To 36" Expandable and shapeable plastic hose into a system for collecting waste material using your shop vacuum. Use the wide mouth nozzle to collect ambient fine dust or direct the narrow tapered nozzle to collect heavier dust and wood chips. Includes: one dust hose, two vacuum hose end fittings, one rectangular nozzle, and one tapered nozzle.