FANVERIM chunky volume knob + channel selector knob for Motorola radios HT750 HT1250 EP350 EP450 EX500 EX600 GP340 GP360 PG380 Compatible with:Motorola HT750 HT1250 EP350 EP450 EX500 EX600 GP340 GP360 PG380 MTX850 MTX950 PTX760 GP3188 GP3688 CP040 CP140 CP160 CP180 CP200 PRO5150 PRO7150 GP328 volume knob channel knob 1X volume knob 1X channel knob