Compatible Models: The ball wheel parts and vacuum head connector are replaceable, suitable for V10 V11 V15 vacuum cleaners. Please confirm your model before purchasing Made of high-quality materials to durability and high performance, this set is designed to protect your carpets and floors while fitting seamlessly with your cleaning head Replacement Purpose: If your ball wheel often falls off, it needs to be replaced. Worn vacuum cleaner head ball wheels make your device harder to push and may scratch your floors and carpets. Replace worn parts in time to maintain optimal performance Easy to install and replace: Easily connect this adapter connector to your vacuum cleaner for an instant upgrade. The design ensures a secure fit and is easy to install and replace without professional help. Enhanced suction and vacuum performance: By optimizing the connection between vacuum cleaner components, this adapter significantly enhances suction power and improves the overall cleaning efficiency