Made from high-temp Nylon and gold plated bullet connectors, both included in the injection mold at the time when forming the connector. The Amass XT30U ensures a solid high-amp connection, perfect for small lipo applications. Made of high temperature nylon the plug is also less likely to deform or melt.Specification:XT30U Plug:Brand Name: URUAVItem Name: XT30UBanana Plug: 2mmMetal Material: Brass gold-platedPlastic Material: PA66Flammability Rating: UL94 V0Contact Resistance: 0.70mRated Voltage: DC 500VRated Current: 15AInstantaneous Current: 30ARecommend Use: 1000 timesRecommend Cable Spec.: 14-18 AWGRecommend Temperature: -20C ~ 120CHeat shrink tube:Diameter: 3.5mmColor: Red/BlackPackaging Included:10X XT30U Male Plug10X XT30U Female Plug20X Red Heat Shrink Tube20X Black Heat Shrink Tube