... Size: 57*87mm, 63*88mm, or customized Christmas cards with top quality--1,Material 250-320gsm paper--2,Size57*87mm ... the right artwork.--7,Mass production3-4 weeks(for quantity below 400,000 sets)--8,Sample chargeTo ... 3),CE,REACH and SGS,you can ask for existing test reports if necessary.--10,Cooperated BrandsFor ... we have cooperated with plenty of famous Brand for their promotional campaigns,such as M&M, ...