Attached Accessory - Universal Stretch Connector This highly elastic connector accessory is designed to accommodate vacuums slightly under the standard 2-1/2" size. The stretchy material can withstand significant pulling force, helping to bridge gaps between the wand and your vacuum's hose opening with smaller size. 2-1/2" Extension Wand - Upgraded Lock Design The upgraded lock design of this extension wand creates a more secure and airtight connection, ensuring the best possible blowing and vacuuming performance for leaves and debris. No worry about blown off during operation. Note: Actual outer diameter( 2-1/2") , inner diameter (2-1/4"). Is it compatible with all vacuum cleaner brands? It works well with most major vacuum cleaner brands with 2-1/2 inch size such as Ridgid, Craftsman, and more. Universal stretch connector helps connect vacuum cleaners slightly smaller than 2-1/2 inches. Not recommended for sizes too small Is the connection secure to prevent falling off? It has an upgraded lockout connection design for secure gutter cleaning. But for safety, you’d better follow the use manual and wear protective gear. Is the total length sufficient for most families? This gutter cleaning tools is sufficient for most single-story homes, garage. However, it will be helpful to get 2 set for taller home Does it come with different nozzle attachments? Yes, the curved gutter nozzle is designed for vacuuming leaves and debris from gutters. The tip nozzle is for blowing use and not recommended for vacuuming, as its smaller opening may easily clog Is it easy to maneuver and control the tool? Yes, this tool is light weight and the curved nozzle helps in reaching tight spots.