Use these mounting strips for safe, hingeless mounting of artwork to mats. Sturdy and safe, Lineco Mounting Strips are made from conservation quality Archival Polyester (Melinex or equivalent) and acid-free paper with a self adhesive backing strip. Simply position the print or photograph in place and adhere strips to the mat. No adhesive ever comes in contact with the artwork. Instead, the art is cradled by inert archival polyester and is ready to be framed. Available in our regular 4" strips and now in an economical 12" strip