... 4.use:sushi,cake,food 5.Origin:Qingdao 1.material :PP cornstarch/PS/PET2.shape:variable3.color:various4.use:single sushi ... harm to people,environmental,blister,non-toxic,transparent lid,colorful tray,sturdy,hygienic,durable,PP cornstarch15.ISO 9001:2008, ISO14001:2004, QS ...