Review on Insulated Electrical Wire Terminal Kit - Sopoby Heat Shrink Connectors Assortment - 810PCS Crimp Connectors For Automotive, Marine, Ring, Fork, Hook, Spade And Butt Splices by Danny Kimble

These are horrible. I guess I should have been more suspicious when all the reviews so far are from people that got them for free or discounted. The metal used for the crimp tube is way too light and crimps don't hold. I tried several of the yellows using my very expensive ratchet crimping tool and none held; the wires pulled out with very little resistance. I could tell immediately - it took very little force on the crimping tool to crush the connector. I have returned them for refund. There is no way I am going to trust these connections in my boat.