370231639172

• 3 — Number system
• 70231 — Manufacturer code
• 63917 — Product code
• 2 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

18x24 - 1lb insight Plus ms sample board 2 of 3

Search for 18x24 - 1lb insight Plus ms sample board 2 of 3 on Amazon (or for the code 370231639172)