Volume Control Knob, Volume Control Knob Volume Control Button, Electronic for Volume Button Specification: Features: Volume control button is specially designed for . 10 pcs per set - Enough quantity for your . A perfect replacement part - To replace your old/damaged/worn volume control knobs. Suitable for CP040//CP200/EP350/EP450/GP328/PRO3150/PTX700, and more. Small and lightweight. Made of ABS and metal. Specification: Type: Volume Control Button Material: ABS + Metal Color: White Weight: Approx. 51g Size: Approx. 26mm / 1in For model: For CP040/CP140/CP160/CP180/CP200/EP350/EP450/EX500/EX600/GP388/GP640/GP644/GP680/GP688/GP1280/GP328/GP338/GP329/GP339/GP340/GP344/GP360/GP380/PRO3150/PRO5150/PRO7150/HT750/HT1250/HT1550/PTX700/PTX760/MTX850/MTX900/MTX960/GP3188/GP3688 Package list: 10 x Volume Control Buttons Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.