Electop 200PCS Heat Shrink Butt Connectors Terminals, Insulated Waterproof Wire Connector Marine Automotive Electrical Terminals Crimp Butt Splice Terminal Kit (3 Colors / 3 Sizes) EASY IDENTIFICATION: Color-coded tubing with wire gauge imprint for easy to identify the right size.Measure your wire, and easily choose the right connector by looking at wire gauge imprint on polyolefin tubing. EXCELLENT WIRE CONTACT: Copper barrel provides increased current flow, decrease voltage drop, preventing wiring failures and reducing equipment downtime. Thick barrel ensures strong crimp every time - your wire will never slip out of the connector. DURABILITY AND WATERPROOF: Heat shrinkable crimp protects splices from water and corrosion, provides high tensile strength as well as resistance to stretch and mechanical damage. Dual walled tubing made from external polyamide and internal hot-melt adhesive provides excellent waterproof property and ensures waterproof seal. WIDE APPLICATION: Whether you are working on your marine, automotive, home improvement or scientific project, our heat shrink butt connectors will ensure strong crimps and corret bonds for increased current flow and waterproof connections every time. PACKAGE INCLUDES: 200PCS heat shrink butt connectors come with case. Red 22 - 18 AWG (90pcs), Blue 16 - 14 AWG (90pcs), Yellow 12 - 10 AWG (20pcs), all packed in a plastic container for easy organization and store.