
I bought these to carry in my bike bag when adding E Assist to my trike and fitting the appropriate tires. It's heavy and I probably wouldn't wear it without E Assist. It comes in a nice case that fits in my trunk and has space inside for tools. This is an American company that also helped me choose. Still carry my spare inflator with you. I can't change these tubes on the track if I get an apartment. I hope this brings me back. It's the size of a soda can.