100% brand new and high quality, never been used. Package contents: - 6 x volume knob - 6 x channel knob. This item is a replacement part of radio volume control knob and channel knob. Mounts quickly and securely to your radio robust and durable. Compatible with Radios: CP040, CP140, CP150, CP160, CP180, CP185, CP190, CP200, EP350, EP450, EX500, EX600, EX600-xls, GP320, GP330, GP328, GP338, GP338 PLUS, GP340, GP344, GP360, GP380, GP388, GP640, GP680, GP3688, HT750, HT1250, HT1250-ls, HT1250-ls+, HT1550, HT1550-xls, PTX600, PTX700, PTX760, PTX760 PLUS, PR400, PR860, PRO3150, PRO5150, PRO7150 All products are replacement part with our own brand Aimtobest. The mention of other brand name or specific model is solely intended to illustrate compatibility.