This listing is for new Sealed 12-10 AWG Yellow Krimpa-Seal Long Neck Ring Terminal Connectors. These are heat shrink Sealed Electrical System (Stamped SES) Brazed connectors and are RoHS compliant. Made in the USA. There simply is no better product made.
NOTE : Crimping tool and Heat Source to reduce tubing and seal connector needed. Butane Torch and Ratcheting Crimp tool recommended. Questions, Please ask.