ROCKBROS Neoprene Ebike Battery Cover Wear Dirt Resistant for Outdoor Use Photochromic Sunglasses and the elastic line can

and the elastic line can be adjusted by rotating and pulling the button up

stable fit Non-slip Built-in silicone

The biggest size is 6

This convenient positioning not only ensures easy access to your bike computer but also enhances safety and overall riding comfort

L size is for 7-11 US(40-45 EU)

ROCKBROS Neoprene Ebike Battery Cover Wear Dirt Resistant for Outdoor Use Photochromic Sunglasses and the elastic line canExtended Battery Range in Low Temperatures: Cold weather affecting your e bike's battery life? Fear not! The 0. 24 inch thick neoprene cover is designed to insulate and protect, ensuring that your battery's runtime remains optimal even in chilly conditions. Tailored Protection for All Frame Batteries: The ROCKBROS e bike battery cover is a custom fit shield for integrated frame batteries from reputable brands. Boasting a circumference of 10. 92 14. 96