jrelecs 5Pair RC Helicopter Part Amass XT30U Non-slip Plugs --XT30 Upgrade This product is a new Amass XT30U plug for Ai Maisi company XT30 based on the acclaimed production of ultra-small plug XT30, lighter, smaller, inside a 2mm gold-plated banana plugs. AMASS small current model plug XT30U, low resistance banana plugs Molded Material: PA66 Finish: 24K gold plated Metal Material: Copper,Application: unmanned aerial vehicles