Wouldn't recommend. I've had these for almost a year and a half and the wires are all still stiff and still retain the kinks of the shape that they're shipped in (see the way they're bundled in the product picture). This makes it impossible to situate them where I need them to be on my workbench, which means I can't keep them safely out of my way while I'm working. The plastic sleeves around the alligator clips are really, really slippery--on both my fingers and on the metal. If you try to pinch the clip with two fingers, your fingers will slip off of the sleeve, while the sleeve is sliding around the clip. It requires two hands to clip or unclip the lead--one hand to hold the plastic sleeve in place, the other hand to pinch the clip.

Not particularly safe or easy to use. I bought these to complement a set I bought from Radio Shack 20 years ago. I find myself using those old leads exclusively now. If the project I'm working on requires more leads than I have from the old set, I tend to rethink what I'm testing, rather than deal with the frustration of trying to use these leads.