E-Bike Battery Rack Bag - store your battery or take an extra with you on your ride (Black) Easily mounts to a bike rack with hook and loop straps Fits most batteries , 5" x 5" x 17" Compatible with Bosch Powertube batteries and many others Made with flame resistant inner liner (passes FMVSS 302 Flame Test) Zipper Closure, Battery Cord Ports, Carry Handles, Mounting Straps, Reflective