789541006671

• 7 — Number system
• 89541 — Manufacturer code
• 00667 — Product code
• 1 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

Archival Ink (tm), library Green (pad)

Search for Archival Ink (tm), library Green (pad) on Amazon (or for the code 789541006671)