Based on my observations, this magnetic fastener is not up to par for my arts and crafts needs. Though it is advertised as a replacement it falls short in holding together my handmade knitted pieces. The magnet is not strong enough and frequently comes apart, leaving my projects in disarray. The only pro is that it is affordable, but it`s not worth sacrificing quality for price .I would not recommend this PRODUCT to anyone in the sewing or knitting community..See full review