Are you looking for a professional and reasonably priced ? Our professional solenoid will meet your needs very well. Made with materials and excellent craftsmanship, it is not only safe and , but also and practical. It can help you effectively reduce noise and is easy to use. It will be one of your choices. Features -Color: Assorted Color -Material: Copper -Size: About 1.50X1.50X1.10cm/0.59X0.59X0.43inch -These compact and practical mufflers are easy to install and maintain, and are good solenoid valved mufflers. - a device that prevents sound transmission and allows airflow through, so it can help you reduce noise well. -The the propagation of sound waves and allow the airflow to pass through. It is an effective tool for noise control. -The solenoid valved can play a good protective role, avoid dust and other infringements, and extend the service life of the solenoid valved. -You can buy this efficient and practical solenoid valved at an . Package list: 12 x exhaust mufflers