The PCTEL Maxrad 3/4" Hole Mount with 17' RG58A/U Cable is designed for mounting an NMO roof antenna in a convenient and secure manner. Made by the trusted brand PCTEL/Maxrad and manufactured in China, this product ensures quality and reliability. The California Prop 65 Warning indicates that it is compliant with state regulations regarding hazardous materials. Perfect for collectors or individuals looking for durable and functional mounting solutions for their antennas.