This is thick paper (cardboard). The front is glossy white, and the back is gray. The size is 26.0cm x 19.5cm. ※Since B5 size is 25.7cm x 18.2cm, it is slightly larger than B5 size. The thickness is about 0.5mm. The number of sheets is 44. It is also thick and I think it is easy to use. As well as thick paper, how about using it for handmade crafts, as a backing board or material for creating works? ※The wrapping paper used to wrap the product is reused due to the recent price increase of paper, so please understand. #paper goods #specialty paper #handmade #handmade materials #handmade materials #papercraft #papercraft materials #papercraft materials #craft punch #die cut #paper #paper #cardboard #white cardboard #white paperboard #chipboard #chipboard paper #thick paper #craft #paperboard #backing board #bookbinding #reinforcement #core material #photo protection #trading card packaging #packaging #padding paper #book packaging #B5