You can attach a marker with the corresponding needle/hook size to your crochet or knitting project if you stop working on it or put it on hold. That way, you won’t forget the needle/hook size you used when you want to pick it back up.

The safety pin is black, and fits needles/hooks up to 6 mm. This is only relevant if you want to attach the marker to the needle itself. You can, of course, attach it to your cable/stitch holder, or you can attach it to the knitting itself, which is what you would do if you’re putting the project on hold.

The markers come with the following sizes engraved on them: 5 - 5,5 - 6 - 6,5 - 7

The markers are made from wood (plywood), making them very light so they won’t weigh down you knitting or crocheting.

Length (without metal needle): approx. 1,8 cm (0.7")
Length (with metal needle): approx. 3,6 cm (1.4")