Specifications: ●Material: Polyolefin + Copper ●Size: 38×6mm ●Weight: 1.1g ●Color: Red ●Package Includes: Red × 80 Pcs Connector color and cable size: Red Connectors: Suits Cable & Wire Sizes 0.5-1.5mm² / 22-16 AWG Blue Connectors: Suits Cable & Wire Sizes 1.5-2.5mm² / 16-14 AWG Yellow Connectors: Suits Cable & Wire Sizes 4.0-6.0mm² / 12-10 AWG Technical Specifications: Double-walled design hoses: Polyolefin hoses outside and hot melt adhesive. Connector from a single piece of copper. Heat-activated adhesive lining. Operating temperature: -55℃–125℃. Minimum shrink temperature: 80℃. Full recovery temperature: 130℃. Polyolefin Tube Shrink Ratio: 3 : 1. 100% Satisfaction Guarantee: ●If the goods are defective or have other problems, please feel free to contact us by email. ●We will respond quickly to your questions. ●We will do our best to meet your needs. ●We can give you 100% money back if you are not satisfied with our products. ●We strive to offer you only the highest quality products and the best service, your satisfaction is our highest priority !!!