I bought this bag to keep my wheel lock from rolling around in the glove box of my new car. The bag is well made with a strong zipper and eyelet. I'm assuming the hub is hanging somewhere when you're working on the wheels. The bag is large enough to add locknuts after being removed for temporary storage. I also love that this bag is pretty self explanatory when it comes to a mechanic who needs some sort of tire removal! :-) Good value for money. For my purposes I would like it to be much smaller and with LOTS of content. Like I said, my goal was to keep my glove box from just rolling around with the tire's "key". I'm sure the larger size makes the search/use mechanics easier.