J.V. Converting SPIKE-PACK/AST0520 JVCC Spike-Pack Spike Tape Multi-Pack: 1/2" x 60 ft. 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)