Ulip 8 1/2 * 2(50-134) Inner Tube Replacement with 90 degree and 134mm Inner Diameter for Special 8.5 Inch Scooter Tubes Tires for Zero 9 Scooter

EXTRA THICK BUTYL :Our inner tubes are twice as thick as normal. Providing a higher impact dampening effect, thick inner tube is not easy to blow out. EXPLOSION-PROOF INNER TUBE WITH GOOD QUALITY FOR SAFETY: it can avoid explosive punctures with our penetration resistant and self-sealing inner tubes. The butyl rubber inner tube is designed to prevent injury, creating an airtight seal when punctured. Your safety is guaranteed in any weather and season. COMPATIBLE WITH SCOOTERS: Zero 9 Scooter.