Consult customer service for wholesale prices! Basic parameters: Product Title: Road Bike Tail Bag Saddle Bag Seatpost Bag Suitable for Java [Not Compatible with Mountain Bikes] Main material: ABS Product color: black Product size: approx Product net weight: approximately 115g Box dimensions 60*50*40CM 60PCS Suitable for: Most Java drop-shaped seat posts (SILURO series, AURIGA, FUOCO and other road bike models), or aerodynamic tubes with a length of 55mm or less Features: 1. Large Capacity: This bicycle tail bag is designed with sufficient capacity to hold various items, such as tools, spare tires, etc., making it convenient to carry the necessary items while riding 2. Daily water resistance: Suitable for travel in light rain; 3. Three-dimensional support: Thickened support to protect internal objects from being easily squeezed 4. Streamlined design: does not affect riding speed; 5. Strap installation: Convenient and quick. Note: Due to differences in monitors and lighting effects, the actual color of the item may be slightly different from the color shown in the picture. Due to manual measurement, please allow a measurement deviation of 1-2cm.