2" x 55 yds. Clear (6 Pack) 3M 351 Carton Sealing Tape. Government Certification Tape. Meets Fed. Spec. PPP-T-60E. Amend 2. Type lll. Class 2; CID-A-A-1830B; ASTM D5486 Type ll. Extra heavy-duty tape ensures reliable closures on double and triple wall corrugated cartons. Adheres instantly to most surfaces including cartons containing high levels of recycled content. Abrasion resistant. Easy unwind. Clear polyester backing with synthetic rubber adhesive.