From Cozyblue: 

"my new magnetic needle minder is the perfect way to keep track of your needle. it also serves as a gentle reminder to *slow down, get cozy, get crafty*. made of smooth enamel with a strong magnet. it's the perfect addition to your stitching supply stash."

a needle minder is a handy tool for keeping your needle safe and handy when you’re stitching. put the enamel side on top of the fabric in your hoop, with the magnet on the back. the magnet is strong enough that your needle will stick to the enamel side when you’re not using it. and the smooth circular design means you won't snag your thread on any corners.

• size: 1.25"

• materials: hard enamel & polished silver plating

• magnet back