Monthong is the most important and famous durian variety of Thailand. It means “golden pillow” in Thai. It produces large, elongated, oval-cylindrical fruits tapering at the stylar end. The large fruit has a pronounced beak, lobed, yellowish-brown each weighing about 3 – 5 kg. The peduncle is thick and moderately long and the rind is thick and covered with sharp, pointed, small, conical, densely packed spines. Each fruit has 10-15 arils and many small, shrunken (aborted) seeds. Each locule has usually 3 large, thick, creamy, smooth, pale yellow arils. The pulp has mild odour and of excellent quality, constituting more than 30% edible portion and has little physiological disorders.