... resistant 3,bpa free,100%recyclable 4,FOB Qingdao & Shanghai Double Wall Glass Tea Tumbler Product description: 1, Material is borosilicate glass which ... free 6, Attrective gift for customers, nice for company do promotion and advertising 7, each cup have different caps and different ... that mainly product all kinds of stainless flasks and glass mugs. We also supply other kinds of products, such as ...