This is thick paper (cardboard). The front is a glossy white, and the back is gray. The size is A5 (21cm x 14.8cm). The thickness is about 0.5mm. The number of sheets is 90. It is also thick and I think it is easy to use. As well as thick paper, how about using it for handmade crafts, artwork backing paper, or materials? *Please note that the wrapping paper used to package the product is reused due to the recent rise in paper prices. #paper goods #specialty paper #handmade #handmade materials #handmade supplies #papercraft #papercraft materials #papercraft supplies #craft punch #die cut #paper #paper #cardboard #white cardboard #white paperboard #chipboard #chipboard paper #thick paper #craft #paperboard #backing paper #bookbinding #reinforcement #core material #protection #photo packaging #photo protection #magazine protection #magazine packaging #book packaging #card protection #A5