The DustROD STD (Standard Length) provides an additional 40" of reach. Perfect for full length use. Say goodbye to bending, kneeling, and crawling along the floor. Say hello to drop ceilings, upper cabinets, light fixtures, eaves and overhangs. With the DustROD STD you receive a 22" section with stainless steel dusting nozzle and elbow each rotating 360 degrees to reach any angle, and an 18 inch extension. It's like having 2 DustRODs in 1.