Review on 550Pcs Heat Shrink Connectors by Tsinglax by Loren Rindfleisch

I can't crimp them without tearing the plastic. When you squeeze it, the crack opens up and exposes the metal. Not exactly perfect. I tried 2 different crimpers with the same result. Also, it turns out that when it's shrunk, there's some kind of weatherproof glue on it. The only ones I would trust to actually seal anything would be butt joints. The rest have an open end next to a ring terminal, spade, etc., so it's almost pointless to them.