Double Wall Glass Coffee Mugs Cups 1,eco-friendly,heat resistant 2,no plumbum 3, ... accept 4,FOB Qingdao & Shanghai Double Wall Glass Coffee Mugs Cups Product Description:1,Material is high grade borosilicate glass which ... 530ml and 590ml for your choice3,offer different type of cups,like straight double wall glass cup,office glass cup, ... old and new customers! Double Wall Glass Coffee Mugs Cups