Front f: approximately 90x300x40mm, rear f: approximately 90x380x50mm. Made from high-pressure resistant PVC material, offering high elasticity, portability, and durability. Lightweight, resistant to cracking and rust. Soft and flexible, can be bent or impacted without easily losing shape. Compatible with front and rear wheels ranging from 20 to 26 inches. Suitable for various bicycles including mountain bikes, road bikes, and touring bikes. Ideal for use in wet or muddy conditions, helping to keep you clean by shielding against dirt and water. The angle between the fs and tires is adjustable, helping to reduce wind resistance. Easy to install and remove without tools. Adjustable in length and height for a customized fit. Features a sleek, streamlined design that is easy to clean and helps protect your bike from mud.