This is thick paper (cardboard). The front is a matte white without gloss, and the back is gray. The size is A4 (21.0cm x 29.7cm). The thickness is about 1.6mm, making it a fairly thick type. The number of sheets is 18. It is also sturdy and I think it is easy to use. How about using it not only as thick paper, but also for handmade crafts, as a backing board or material for creating works? *Please note that the wrapping paper used to wrap the product is reused due to the recent rise in paper prices. #papergoods #specialtypaper #handmade #handmadematerials #handmadematerials #papercraft #papercraftmaterials #papercraftmaterials #craftpunch #diecut #paper #paper #cardboard #whitecardboard #whitecardboard #chipboard #chipboardpaper #pokecapackaging #thickpaper #craft #cardboard #backingboard #bookbinding #reinforcement #corematerial #photoprotection #photopackaging #bookpackaging #A4