FakeFace Bike Seat Bag Outdoor Cycling Bike Bicycle Saddle Bag Under Seat Packs Tail Pouch Saddlebag - Quick-Release Double sponge padded walls, provide double solid support effect, reduce shock and improve items safety in bag Velcro strap attachments and riser adjustable bungee are compatible with most bikes, easy to install and remove Reflective strips design for visibility in low light conditions to ensure a safe ride at night Storage compartments easily fit basic tools, chain, snacks, keys, wallet, cell phone and so on. Customer service - If you have any issue with this product at any time, please always contact us first before leaving feedback/review. We will strive to fix the issue to your full satisfaction.