This brush is ideal for safely and efficiently clearing moss from shingles. The 4.5" x 2" brush head was designed to effectively contact the edges and grooves of asphalt shingles to remove moss with ease. The dense plastic bristles will not fall out like wire brushes, but will instead maintain their position in the brush head while they slowly wear down from regular usage. Product tests show that this brush will last up to 5 times longer than traditional wire brushes. For the most ergonomic experience, pair the Big Shot Roof Brush with our 60" Roof Brush Handle. This duo will have you cleaning roofs quicker and save your back and knees at the same time!