Upgraded inner tubes:(Model: 10x2.5,45° valve).The upgrade is thicker and heavier than the original,weight: 130g and thicker (2mm) than the original (0.9mm).Compared with the solid tires, it has a good damping effect and easier installation. You can ride more quietly.Please note the item are not 2.5-10" inner tube.

High-Quality Material: This inner tube is made of thick butyl rubber, providing superior wear resistance, puncture-resistance, and anti-skid performance.It is superior in air tightness, elastic damping, and aging resistance compared to natural rubber.

Durable Tube: Featuring a high-quality reinforced valve that preserves more pressure and withstands any pressure changes, this solid tube has been developed to respond to uneven road conditions, providing durability and longevity.

Please check the shape and size before purchase. It is strongly recommended to wear anti-puncture strips for extra protection. While the tubes are thicker, they are not indestructible. If a tip penetrates your tire, your inner tube can be pierced. Before installing, wrap the pointed end of the crowbar with a fiber cloth to prevent damage to the inner tire and coating of the hub.

PREMIUM KIT: Your kit includes two high-quality 10x2.50 inch inner tubes with angled valves and two tire levers. The two tire levers make it easy to replace your tires.