Test Lead 100cm Retractable Shroud 4mm Stackable Plugs - R-TECH 524596, The R-TECH 524596 Test Lead 100cm, Retractable Shroud, 4mm Stackable Plugs, Black is a 4mm stackable plug test lead, comprising a 1m cable fitted with a 4mm banana plug at each end.The plugs feature a retractable shroud, which retracts into the plug body as the plug is inserted.The banana plugs have a cage spring to provide secure connection. They also incorporate a socket at the rear of the connector to accommodate an additional 4mm plug, enabling multiple plug connectors to be plugged into the same socket connector.Ideal for connection of Test and Electrical equipment where safety, protection from arcing or "flashover" due to exposed test connectors and multiple connections are required.The high quality PVC insulated cable is CAT II approved to 1500V. R-TECH 524596 Test Lead 100cm Retractable Shroud 4mm Stackable Plug Black 600V