The TOOPRE Cassette Lockring Removal Tool is a durable bicycle maintenance socket designed for removing and installing cassette lockrings. Made from high-carbon tool steel with full electroplating and heat treatment, it offers strong hardness, wear resistance, and long-lasting performance. The precisely machined teeth fit securely into cassette lockring grooves to help prevent slipping, while the extended sleeve body increases the contact area for better torque transfer and stable operation. Compatible with most 6/7/8/9/10/11-speed cassette flywheels, it is suitable for mountain bikes, road bikes, commuter bikes, and many electric bicycles.