A4 about 210mm×29mm

A3 about 420mm × 29mm

A3 yes A4 the2 double Size

most of you may not know about grams

but A4 ordinary printing paper should be very familiar, ordinary printing paper is generally70g,230g just Pu

more than 3 times the thickness of the printing paper [or you can look at the thickness of the business card, the thickness of the business card is

it is 230g thick]]

color difference, the actual product is more bright and bright

try it on a variety of handcrafts, paper quilling paper folding, etc.

You can make paper quilling on this cardboard

this model is about A3 size 29 * 42cm

starting from 50 pieces. 50 sheets for one color, 50 sheets/set for one color. Color can be noted, or contact customer service