Buffalo Hill (Hong Kong) can be identified by its uniquely shaped Buffalo's head peak. Eight valleys associated with six streams lie around the slope of the hill. The biggest stream and valley flows along the north-eastern slope of Buffalo Hill and into the Shing Mun River. The entire hill is composed of exposed basalt rock, with some smaller granite deposits also present. The peak of Buffalo Hill is covered by grass and small shrubs, while the valleys are lush with forests. Different types of grass, including Couch grass, Bermuda Grass, Manila Grass and annual bluegrass, grow on the slopes of the hill, while the
Carpet synthetic fibres such as nylon the durability of wool is increased. Blended wool yarns are extensively used in production of modern carpet, with the most common blend being 80% wool to 20% synthetic fibre, giving rise to the term "80/20". Wool is relatively expensive and consequently it only comprises a small portion of the market. The polyester known as "PET" (polyethylene terephthalate) is used in carpet manufacturing in both spun and filament constructions. After the price of raw materials for many types of carpet rose in the early 2000s, polyester became more competitive. Polyester has good physical properties and is