Guide wheels ensure clean lines when trimming around ceilings, baseboards, windows, doors and moldings. The improved design structure prevents the guide wheel from falling off during use. The rotatable handle, also known as universal rotator, can be adjusted left to right, up and down, or at any angle. Please lock the handle tightly before use to avoid rotation affecting application. The paint edge trimmer has 5 mm long, dense and flat bristles with high paint absorption capacity for smooth results. It can be used manually or with an extension rod with threaded connectors. After connecting the extension pole, tighten the knob to prevent loosening. When painting wall corners with same paint on both sides, cut into the corner directly. If the other wall does not need painting, use with protective tape for better results. The paint edger has thicker shell, fuller glossy color, fine detailing with no protrusions, and smooth guiding wheel rotation. weight: 0.35 pounds.