◎ 50 sheets of cardboard for backing and protection. (No individual sales.) ◎ A4 size: 210 mm x 297 mm. ◎ Thickness per sheet: approximately 0.3 mm. ◎ Weight per sheet: approximately 15 grams. ◎ White surface, gray back. ◎ Equivalent to Suncoat L-size 20kg. ◎ Grain direction is vertical. ◎ Price includes shipping via Click Post. ◎ Shipping is scheduled for the next business day after payment confirmation. ◎ Closed on Saturdays, Sundays, holidays, and during the year-end/New Year holidays. ※ Please check the "Profile" before purchasing to prevent any issues. Items from Hitsuji Club are always on sale, so there are no discounts. Offering discounts would be unfair to those who purchase at the listed price. Thank you for your understanding.