Product details and features: 1. Using high-strength composite PP engineering material, heat resistance, cold resistance, good toughness, sturdiness and durability, resistance to pressure and drop. 2. Comfortable backrest, according to the ergonomic design concept, make the backrest more comfortable and beautiful! 3. Bright red night warning reflector, make night travel safer! 4. Universal quick release base, thick iron bottom plate with three-point embedded quick release design, safe and reliable, strong versatility, suitable for all models with shelves. Specifications: Material: special grade PP material, it wear resistant to impact, scratch-proof,durable and waterproof Trunk Dimension: 43x45x30cm/16.9x17.7x11.8In Volume Capacity: 40L ☆Precautions: Due to different spotlights and different screen colors, the actual object may have a certain color difference, which is normal. There may be some errors in manual measurement. The graphic data is for reference only. Please refer to the actual product. If you have any questions, please do not hesitate to contact us. If you are satisfied with this purchase, please give us a five-star store and product reviews, we will be very honored if we get a good evaluation.