Off-white cardstock Suitable for sketching and inkjet printing Purchased at Itoya. I am not an expert, so I don't know the detailed material specifications. 10 sheets weigh 15g on a kitchen scale. The sheets will be sent with a backing board every 10 sheets. Stored by a non-professional. Some sheets have scratches and bent corners as shown in the photos. - Color: White - Size: Approximately 6cm x 19cm - Thickness: Cardstock Please note that the packaging will be done by a non-professional and will be eco-friendly.