1.High quality 2.Reusable and durable 3 OEM is welcome 4 Sample supply . Needle core material: copper, nickel-plated;· Colloidal Material: ABS, mold rubber· Hardware copper shell: copper nickel-plated· Tolerance: ± 0.1 Shenzhen skyforever technolog.,Ltd.provides 2.35MM Safety female plug,safety plug,electrode plug. safety plug,safety female plug,various plug