DescriptionReport ItemMaterial: rubberTire inner diameter: 584mmWeight: about 606gSize: 27.5*1.65Air pressure value: 50-80psiProduct features: High-quality rubber material, anti-aging, wear-resistant and durable, with longer service life. The reflective strip design reflects the surrounding light at night. It is three-level stab-proof and safer to ride. There are arrows engraved on the outside of the tire, and the direction of the arrow is toward the direction of riding.