Dual Silencer System for Complete Noise Reduction​ - Combines ​4-pack SB9800 Ventilated Rotor Spring Silencers​ and ​2-pack 9.25" Non-Vented Rotor Silencer Bands​ to eliminate vibration and noise during all types of rotor cutting. Achieve smoother operation on ​both ventilated and solid rotors​ – ideal for professional workshops and DIY projects. ​Universal Brake Lathe Compatibility​ - Designed to fit ​most major brake lathe models. The SB9800 springs target ventilated rotors, while the 9.25" bands handle large non-vented rotors – making this kit a versatile, all-in-one solution for every job. ​Premium Materials for Long-Lasting Performance​ - SB9800 springs made of ​high-grade spring steel​ resist wear under high-frequency cutting. 9.25" bands use ​durable, corrosion-resistant rubber​ – ensuring extended service life and reduced replacement costs. Easy Installation & Time Savings​ - Both components feature ​flexible, tool-free designs: Simply attach springs to ventilated rotors or swap bands for non-vented rotors in seconds. Minimize setup downtime and maximize workshop efficiency. Complete Kit + Reliable Support​ - Includes ​4 SB9800 Spring Silencers + 2 Silencer Bands (9.25")​​ – perfect for bulk servicing needs. Backed by responsive customer support for compatibility checks or troubleshooting.