Bicycle Bag, Strap On Bike Saddle Bag, Seat Storage Pouch Bag, Sport Cycling Bag, Velcro strap system, Reflective Velcro strap for quick install and removel Taillight hanger, Reflective material, Velcro straps, Expandable for added capacity 100% Satisfaction - 90 Day money back Guarantee If you have any issue at all, just let us know. We will replace it at no cost or issue you a full refund!