Cncrown's custom lunch box wholesale can be made by food grade PP. TRITAN, ABS. PS. AS, Silicone, PE, PLA, Husk fiber, natural bamboo and stainless steel etc, All custom lunch boxes are welcome to do customized logo, name and printing on blank lunch boxes wholesale for all customers. Of course, if you want to do Original Design Manufacturer about personalized lunch box for adults /kids, warmly welcome to contact us as well.