1/2 x 450 in (12.7 mm x 11.4 m). Write on it. Real savings. Highest quality. Every day. Disappears on most papers. Write on it with most writing instruments. Permanent, will not yellow. If you're not completely satisfied with this product, please contact us at www.essentialeveryday.com or 1-877-932-7948. Reusable dispenser. Made in China.