The size is 26-29 inches, which is the normal size. It has excellent elasticity and can stretch for better coverage. Therefore, it is suitable for mountain bikes, off-road bikes, road bikes, fixed gear bikes, cruisers or other types of bikes.The upper part of the wheel cover adopts high elastic band to avoid slipping, and the non-elastic mouth is larger, so there is no need to worry about installation falling off. The all-black color makes the casual matching of the bicycle more beautiful and generous, easy to carry and wear at any time.Don't bring outdoor dust and dirt into your home! This bicycle wheel cover protects your precious furniture from pollution and keeps the indoor floor bright and clean.Yes, it looks cool, and its material is also high-quality, using dust-proof polyester to prevent dust and moisture. No matter what kind of weather, it can keep your bike and home safe and clean in any season.