Locking Stitch Marker

I swear I keep losing stitch markers but first time using the locking ones. Work as expected but am adjusting to them since the ones I usually use aren't as big

They are big enough and there are enough of them to use all the time.

Use these all the time. Great to catch dropped stitch, mark beginning of round on fabric when using magic loop, marking right side but really love them to pin in sleeves when constructing sweaters