There are a total of four vacuum cleaner accessory adapters of different specifications, which can be adapted to more vacuum cleaner models, so that you have no worries. 5 Layer Universal Vacuum Hose Adapter: Outer diameter of the 5 layers vacuum adapter is 27mm, 32mm, 35mm, 40mm, 50mm. Suitable for shop vac attachment with 1"?25.4mm), 1 1/4'' (32mm), 1 3/8'' (35mm), 1 1/2''(39mm), 1 7/8"(49mm) diameter. The vacuum hose adapter can be easily cut into 5 size connector to fit for shop vac accessories. Vacuum attachment 1-1/4" to 1-3/8" to 1-1/2" : This vacuum attachment converts 1-1/4" to 1-1/4", 1-1/4" to 1-3/8", 1-1/2" to 1-1/4", 1-1/2" to 1-3/8" and 1-1/2" to 1-3/8" for everyday cleaning needs and is suitable for most vacuum cleaners. Convenient and easy to use. Vacuum Hose Converter 1-3/8" to 1-1/4": This hose converter reduces a 35mm/1-3/8" vacuum to a 32mm/1-1/4" attachment, allowing your vacuum to accommodate more cleaning brushes for a wider range of uses. Vacuum converter 2-1/2" to 1-1/4": This vacuum hose converter can convert 2-1/2" to 1-1/4", this hose converter can attach other smaller tools or attachments and make daily cleaning easier and faster. Note: Our shop vac attachments are suitable for many types of vacuum cleaners on the market. If you find that the vacuum accessories are not suitable after receiving them, please contact us. Package Includes: 1. Extension tube *2 2. Horsehair round brush *1 3. Two-in-one flat suction *1 4. Sofa suction nozzle *1 5. T-shaped brush *1 6. long soft flat suction nozzle *1 7. Flat suction nozzle *1 8. Vacuum Hose Converter 1-3/8" to 1-1/4" *1 9. Vacuum converter 2-1/2" to 1-1/4" *1 10. Vacuum attachment 1-1/4" to 1-3/8" to 1-1/2" *1 11. Vacuum attachment 1", 1 1/4'', 1 3/8'', 1 1/2'', 1 7/8" *1