820103550253

• 8 — Number system
• 20103 — Manufacturer code
• 55025 — Product code
• 3 — Check digit (confirms the number is well-formed)

UPC-A ✓ Valid check digit

• 820103550246 — Realalt 3Dtrisport Walking 3D Digital Pedometer With Clip And Strap (White)

3Dtrisport Walking 3D Multi-Function Pocket Pedometer, Clip And Strap With E-Book (Black / Grey)

Search for 3Dtrisport Walking 3D Multi-Function Pocket Pedometer, Clip And Strap With E-Book (Black / Grey) on Amazon (or for the code 820103550253)