... :4mm,5mm size(inch):4"and 6" pattern:clear LOUVER GLASS FUCTIONS Ventilating direction can be controled by adjust blades degree ... as customer's request colour: clear , blue , tea , grey , green etc. Packed in carton box. Glass paper be inerlayed between each ... container we can supply a great varity of glass ,such as float glass , patterned glass ,reflective glass ,etc. which are rich in colours(tea ...