Kuject 200PCS Solder Seal Heat Shrink Butt Connectors, Waterproof Wire Connectors Kit Electrical Terminals, Solderless Insulated Wire Splice Cable Connector for Marine Automotive Boat Truck

I’M IN LOVE! these are amazing! Who ever designed and engineered these suckers deserves the best because these are a time killer!! They have made my time so much easier and I can wire way better now without stressing and struggling and why? Get a heat gun or a lighter and BOOM! Your ready to go and the fact there’s a ring solder inside is insane that’s why is rather spend money on these suckers but wish they added a glue adhesive inside and I know there will or has to be one but my review is 10/10

They work really good. Used them for some wiring on my boat, really solid. Just don’t shrink the sides first then the solder it will blow out of it from an air pocket being stuck.

Fit well but somewhat difficult to get the solder to melt. Looks like you are melting the rubber coating but its pretty sturdy.

I like this design. You have to thread it through one side, twist the two wires together, slide the seal metal part to the twisted wire ends and clamp it down there. I pump in some dielectric grease before clamping and heat shrinking. Then I paint the whole area over with liquid tape and shrink a sleeve over that. It's impossible to overkill anything on a boat.

These are really cool. I used to crimp and then heat, not with these. I had to take a second take at the directions NO Crimping required.I bought these buy mistake thinking they were crimp Ons, but I was wrong, and these are easier to use and then seem to fuse to the wires. I look forward to using all of these in the kit.

I was a skeptic but thought I’d give them a try. I used them to connect a new in-dash stereo unit. I was totally surprised at how all they work. I’ll definitely be using them again.

These are awesome. Easy to install.

Hit and miss with these. Some work , some don't.