Right-Stiffness Bristles help remove dust, dirt, grease, spot from various surfaces like tiles, grouts, wood floors, carpet, etc. Comes with 3 Sections of poles. Easily assemble and connect so firmly. Flexibly adjust its length to 16.5 / 33.5 / 49.6 inches. Convenient to use. Brush Head - 45 degrees, ergonomic angled design. Easy to reach corners and cracks without bending or kneeling down. Save your back! Save your knees!