Brand: TOOPRE (can provide authorization) Product name: Mountain bike vacuum tire liner Material: EVA Length: about 2.1M Weight: about 208/set Box size: 40*34*34cm, weight: 2.8kg, quantity: 10 sets per box. Includes: Vacuum Liner*1, Cable Ties*3, Instruction Manual*1, Carrying Bag*1. Applicable: Vacuum Tire Liner Compatible DiameterAny tubeless valve wheel of 29inch (700C) and suitable for 1.9-2.25" (approximately 48-57cm) tire width. Features: The padding enhances tire and wheel control, durability, performance, and protection. Designed specifically for tubeless tires, the padding is a high-quality EVA polymer insert that replaces part of the tire's air volume, allowing it to maintain stable grip and control even at low pressure.