1/2" x 1000 yds. (1 Pack) 3M - 920XL Adhesive Transfer Tape, Double coated transfer tape perfect for smooth surfaces.. Great for posters, point of purchase advertising, note pads, literature and business forms. Liner extends beyond the width of the adhesive to provide easy liner starting and removal. Apply adhesive side down so the liner can be peeled off when needed. 3" core size.