1. For NIU KQi3 Scooter 9.5inch solid rubber tires for NIU KQi 3 Sport/Pro/Max electric scooter, 1 piece. It depends on the width of the original tire cassette. If the cassette width is between 1.7 1.8 inches, then our solid tires will fit; otherwise, they won't. *Not suitable for NIU KQI2.* 2. Punctureproof solid rubber tires: Made of elastic rubber, these tires are punctureproof, require no inflation, and keep you from flats and air leaks. The shockabsorbing honeycomb hole design provides better cushioning than ordinary solid tires, making them a replacement for the original pneumatic tires. 3. Nonslip A deeper tread pattern and wider tread size enhance grip and cushioning. Even in rain or snow, the scooter remains easier to control, ensuring maximum safety. 4. No inflation needed: Thickened natural rubber eliminates puncture and inflation concerns, so you no longer have to worry about nails or gravel damaging the tire. More durable than pneumatic tires and more costeffective than tubeless tires.