I haven't used them but I bought a pack today. Plan to use them for CB's and other hard baits (except topwater). I didn't see any "pound test" they just had one version, so I am wondering how strong they are. Was hoping someone has used them and knows their strength. They seem to be plenty strong enough considering I will be using them strictly for bass od Ky and Barkley (not for 10 plus lbers like in Florida and such :( ) But you never know. I am going to attach it to a hook and give a pull until the line breaks or the clip opens. Using an improved clinch knot, if the 12 lb P-line breaks first, they are plenty strong. Thanks.