Features 100% Brand New: Never mounted, premium high-quality aftermarket accessory. Durable Construction: Made of high-density, weather-resistant nylon fabric. Excellent Protection: Shield your custom lithium-ion battery from dust, dirt, and water splashes. Optimal Weight Distribution: Mounts securely inside the frame triangle to maintain central bike balance. Secure Fastening: Multi-point hook-and-loop straps ensure the bag stays firmly in place during rough rides. Exact Item Visualized: Photos display the precise item and strap configuration you will receive. Specifications Color: Black (as pictured) Material: Heavy-duty nylon textile / Oxford fabric Placement: Bicycle front triangle frame area Fitment Custom 18650 / 21700 lithium battery packs DIY Electric Bicycles Mountain Bike frames with compatible triangle geometry Package Includes 1 * Triangle E-Bike Battery Bag (as pictured) Note: Battery, cells, and installation hardware are NOT included. Reminder: Installation instructions are NOT included. Please check your frame dimensions carefully to ensure a proper fit.