【Perfect Compatibility】Custom-molded specifically for JAVA Gavo teardrop seat tubes, providing seamless integration with SILURO series, AURIGA, FUOCO, and other compatible models. 【Waterproof Hard Shell Design】Constructed with PVC and silicone materials featuring sealed construction, shock absorption, and scratch resistance for reliable protection in all conditions. 【Generous Storage Capacity】0.55L internal space accommodates inner tubes, tire levers, tool sets, and other essentials to prevent puncture emergencies during long rides. 【Expandable Functionality】Rear extension capability allows attachment of number plates, tail lights, and other accessories, while the smooth surface supports DIY sticker customization. 【Weather-Resistant Protection】Soft silicone cover provides dust and water protection, ensuring reliable performance in harsh weather conditions and dusty road environments. Specifications: Material: PVC + Silicone Dimensions: 198 x 175 x 62 mm Weight: Approximately 300g Capacity: Approximately 0.55L Front Mounting Screw Size: 5mm Rear Screw Hole Size: M4x12L