FUNCTION: Keep seat clean during rainy days, rain won't come through the stitching. EASY TO USE: This bike saddle bag is easy to put on and take off from your bike. ADVANTAGES: Not only help to keep the saddles dry, but also prevent them from getting scratched or dirty. FITS FOR MOST BIKE SEATS:Due to extendable material,the waterproof bike saddle cover fits all bike. WELL MADE: Bicycle saddle cover with durable waterproof PVC, good quality, keep your seat dry. Description: The elastic edges will stretch over the seat and will stay in place well. Perfect for normal bicycle, mountain bike and children bicycle. Color: Black Weight: 9g/pc Package includes: 10pcs*cushion cover Note: 1.1 inch=2.45cm/1cm0.393inch 2.Please allow 1-3 cm error due to manual measurement. Pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you