... closurethis type jar made of glass, and with rubber and closure cover on lid;with great tight ness;the rubber import from Foreign ... blow glass, machine press glass, also some man made glass. We have all various glass tumblers, tea cups, beer mug, bowls ... , jars, plate, dishes, ashtray, stemware also microwave bowls, etc. we also do deep-processing products, such as decal, printing, frosting ...