T.R.U. ATG-7502 ATG Tape (Acid Free Adhesive Transfer Tape): 3/8 in. wide x 36 yds. (Pack of 6) Acid Free Thickness: 2 MIL (0.050mm) Carrier + Adhesive Core: 1" inch diameter plastic Adhesive: Glass Stabilized Acrylic Adhesive Release Liner: 50# gold paper