These Needle Size ID Tags from KnitPro are useful slip on markers that help keep track of the needle sizes on the cable when the needle tips are removed. All tags are marked with metric and US sizes for ease of identification.

Each pack contains a set of 13 markers

KnitPro state 12 markers are included, but there are actually 13:.

3.5mm (US 4)
3.75mm (US 5)
4mm (US 6)
4.5mm (US 7)
5mm (US 8)
5.5mm (US 9)
6mm (US 10)
6.5mm (US 10.5)
7mm (US 10¾)
8mm (US 11)
9mm (US 13)
10mm (US 15)
12mm (US 17)