The Ideal Compression Connectors, model 89-5047 RG-59, are all single piece designs that are manufactured to meet the demands and expectations of the satellite and cable TV industry. All series of connectors are effortlessly positioned onto properly stripped coax and are permanently connected when terminated with an Ideal OmniSeal Compression Tool. All BNC compression connectors use a standard 1/40, 1/40 strip. Multiple quantities and connector features ensure that you will have the right connector for the job. Because the Ideal BNC connectors come in a 35 pack, you will always have enough. These are recommended for music professionals or anyone who wants to improve their home entertainment system. Ideal Compression Connectors are a good and smart investment and will stand the test of daily wear and tear. IDEAL BNC COMPRESSION CONNECTOR RG59 JAR 35