... 2)OEM is for 9 years experience 3) Good Service window box Size Could be customizedMaterial250gsm, 300gsm, 350gsm Ivory cardPrinting1-4 ... box promotion box, adver box, gift box, and so onWeight105 GSM,128GSM,157GSM,200GSM,250GSM,300GSM,400GSM etcPacking100pcs or 200pcs/carton ... wrapping box inside, belt outside to keep it solid. 2011 window box