Specification: Product Name: Bicycle Rack Bag;  Material: EVA;  Size: About 28.5 x 19 x 18.5 cm;  Weight: About 345g;  Color: Black blue / black green / black red / black orange;     Features: Built-in mesh pockets to classify small items, increased capacity design, and internal space to match freely.  Multiple protection for greater peace of mind, the bag comes with a reflective strip, external taillight system, safety we do everything. (This product does not include taillights.)  EVA hard shell process, EVA material, anti-crush, and anti-drop strong shell, are more suitable for outdoor sports.  Large capacity storage, to meet your needs, loading with the car repair tools, daily items, etc. can be easily packed.  Convenient aluminum alloy disassembly rack, simple and easy to load and unload the shelf.  The tail can also be hung for security taillight, night riding safety and personality.  The small design is convenient, and the tail bag's internal anti-fall lining design, even if the zipper is fully open, do not worry about falling items.  Self-reflective strip, quick-release rack, thoughtful with the aluminum quick-release rack, one-touch installation, no tools.  Complimentary waterproof cover, no fear of wind and rain.  Subtleties and more thoughtful, details can reflect a good bag, every little thing can reflect our intentions.     Package included: 1 x Drop-proof thickened hard shell bag;  1 x Quick release lever;  1 x Waterproof cover