Multi Function Vacuum Tool Connector: It enables one machine to be used for multiple purposes, connecting accessories such as brush removal, long flat suction, and brushes Caliber conversion: Vacuum Cleaner Tool Conversion Adapter connects different specifications of suction heads, making it easy to expand the cleaning tools that come with vacuum cleaners Buckle connection: Cordless Vacuum Attachment Connector can be easily fastened with just one press, eliminating the need to manually rotate and tighten various cleaning accessories Save accessories: Vacuum Replacement Converter Adapter does not require a complete set of cleaning tools for replacement, and can be used to mix and suction heads with just the adapter Portable body buckle: Cordless Vacuum Attachment Connector can be attached to the side of the vacuum cleaner, making it easy to carry when cleaning outside without losing it