1. Material: inner tire: butyl rubber; outer tire: rubber 2. Suitable for: balance scooter/electric scooter/electric bicycle, etc 3. Model: 10 x 2.125 4. Wear-resistant and durable material, long service life 5. Good airtightness, heat resistance and aging resistance 6. Easy to install and remove, can be used as spare tire 7. Weight: about 480g
