1. The Front Wheel Of Vacuum Cleaner Is Made Of High-Quality Pe Material,Quiet Wheels,Durable,Long Service Life,High Smoothness,And Will Not Damage The Floor. | | 2. The Size Of The Long Shaft Is 1.8Mm,The Diameter Is 3.03Mm,The Size Of The Wheel Is 12.9Mm X 7.12Mm,And The Weight Is 3.8G. | | 3. The Front Wheel Of Vacuum Cleaner Has Extensive Compatibility.It Is Compatible With Shark Navigator Vacuum Cleaner Nv350 Nv352 Nv355 Nv356E Nv500 Nv501 And More,And Has Strong Practicality. | | 4. Using These High-Quality Vacuum Cleaner Wheels,You Can Enjoy Cleaner And Fresher Air At Home.They Will Quietly Lead The Vacuum Cleaner To Remove Food,Hair,Dirt And Dust,Thus Ensuring That There Are No Contaminants Around Your Living Area. | | 5. It Is Easy To Install,You Just Need To Push Down The Older Wheels With A Flat Head Screwdriver,Install The New Wheels.And We Provide 24 Hours Online Service,If You Have Any Questions,You Can