W5SWL Brand Premium Series Crimp Ferrule for RG-58 Size 5-PACK for RF Radio Adapter Connector - by W5SWL Brand Crimp Ferrule for RG-58 Size Coax for Radio Adapter Connector Replacement Crimp Ferrules Package of 5 by W5SWL Brand is Trademarked - Sold only by Dave's Hobby Shop and NO others. Premium Communications Connectors - not for Cable TV