Gold Plated Thread and PinCompatible with RFB-1142, work wiht:TK-260, TK-270, TK-272, TK-273, TK-280, TK-290, TK-270G, TK-272G;TK-2100, TK-2140, TK-2160, TK2170, TK-2180; TK-2200, TK-2202, TK-2212, TK-2302TK-360, TK-370, TK-372, TK-373, TK-390, TK-380, TK-370G, TK-372G; TK-3100, TK-3140, TK-3160, TK3170, TK-3180; TK-3200, TK-2302, TK-2312, TK-3302For , portable radio and other radio fit SMA-F type AntennaPart Number: RFB-1142Gold plated contactImpedance: 50 ohmLength: 1 inch Package Included :4 x SMA-F to BNC-F AdapterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.