This is packing material for corrugated sheets. Applying it during installation provides stability. It has been stored for a long time, and some of the double-sided tape is peeling off. Please reapply double-sided tape before use. Purpose: Reduces flapping. Prevents noise and nail pull-out. Specifications: Width 1.5M, Length: 63CM Material: Foamed urethane Building materials / Corrugated sheets / Corrugated sheet installation tools. Set of 2 white circuit board mats, perfect for electronic work, approximately 650mm in size. - Quantity: Set of 2 ※ Price negotiations not accepted. ※ Shipping costs can be discounted for bulk purchases. ※ Will be folded and packaged in recycled materials for shipping. ※ Shipping method may change. ※ No returns accepted.