Mylar and Polyprolene Ultra Clear Mounting Corners. Fast and easy. Mylar is the clearest plastic and is typically the first choice of museums. Polypropolene, although not as clear is inert, acid-free, safe and widely used for mounting. The image can be removed easily since there is no tape.  Both are used to mount light to moderate weight prints.  Adhesive never comes in contact with the image. The image can be removed easily since there is no tape.  There are two designs of corners:  Standard and Fullview.  The standard forms a triangle and must be mounted far enough from mat window to be covered completely by the mat.  Fullview minimizes the border required to hide the corner. 

Application is fast and easy. Simply peel and stick. Attach easel to your backing and you have an instantaneous easel back.  Can be applied horizontally or vertically.  7 inch and larger come with "double wing" design for more stability.  White color. Come in packages of 25.