clay bird whistle 1.material is clay 2.size is8-12cm high 3.as a speziell whistle make pleasant voice 4.China folk art Animal shape clay bird whistle1.material is Mud/clay2.size is8-12cm high3.as a speziell whistle make pleasant voice4.China folk art Clay Bird whistle is China traditional whistle ,It is made by wise and skill craftsman and popular in folk. Specification material is mud/claysize ...