Features: High quality, made of premium materials, very practical. Quick installation and easy to use. Constructed from high-quality materials for durability and resistance to wear and deformation. Enhances appearance with a stylish design, making your vehicle look more distinctive. Compatible with ETAP and AXS electronic shifting dropper seat tube battery charger. Fashionable design with long service life. Please confirm model compatibility before purchasing. Specification: Product name: Dropper Seat Post Battery Charger Material: Plastic Color: Black Size: 12 x 3 x 4 cm Weight: 60g Charging: Approximately 45 minutes to fully charge Note: Product appearance may vary slightly between batches, but this does not affect functionality. Package Contents: 1 x Dropper Seat Post Battery Charger (Other items not included) Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowed is +/- 1-3 cm.