J.V. Converting MINI-SPIKE-PACK/ASTP052 JVCC Mini-Spike-Pack Mini Spike Tape Multi-Pack: 1/2" x 2 yd. / Assorted Core: 1 inch diameter Backing/carrier: vinyl coated cloth Adhesive: rubber Thickness: 11.5 mils (carrier, adhesive) Adhesion: 50 ounces per inch (to stainless steel test panel)