Hi
@cyberwasp
Definitely a strange one!.
I know what you mean about covers slipping!.
I have to shamefully admit that all mine have seen the world on their way to me. But most have been good with some exceptions. I suppose the question is back at you...
What size?, what ccurrent?, fully insulated?, what material?, complete test lead?, colour? Etc.
Most cheap ones have a terrible rivet that separates. Also most cheap test ‘leads’ have terrible plated strands that wont twist for tinning.
That said, some have nice 18awg silicone wire.
I would think any reputable store will have quality and a price to match. Probably have to try a few to see what meets your needs that you like.
Martin