Chinese Hulusi, Gourd&bamboo Flute, Adjustable, with Case (C Key) Material: Purple Bamboo, Gourd Accessories: 1 case, 1 Chinese knot Suitable level: Beginer, Intermediate Hulusi is produced from natural bamboo and gourd, so there may be differences with each other. Engraved patterns may be different with it shown in the pictures. Pattern will be randomly selected.