What the Avery 5160 template is
Avery 5160 compatible sheets are the 2.625 x 1 in address label sheets that fill a US Letter page with 30 labels in 3 columns and 10 rows. The Avery 5160 label template uses those numbers, so the label on screen is the label that comes out of the printer.
The layout is also sold as 5260, 5960, 8160 and 18160. Those numbers share the same 2.625 x 1 in label, 3 x 10 grid and margins, so a pack with one of them prints the same sheet on this page.
Avery 22807 · 12 per sheet · Start at 5