Review on 🔲 Large Black Zefal Bag Z Box by Russell Rabbach

I like this bag very much. It is thoughtfully designed and versatile. The main compartment is about the size of a regular water bottle. The additional screwed top is ideal for storing small items. I have a multi tool, an expensive high lumen bulb that I don't want to permanently mount, two tire tools, an iPhone mount (when not in use) in the bottom compartment. The only flaw - a fairly serious one - is that the threads that screw the top into the bottom aren't deep enough - only about two turns. They are so flat that the top tray can be removed with a relatively light horizontal movement. Horizontal movement can't happen in normal use so I kept the case but it looks like the manufacturer should have recognized that and fixed the problem. UPDATE: Downgraded to one star as no wonder the top fell off. Driving home today and saw him about a mile down the road I turned to try and find him - to no avail. Not only the upper part was lost, but also the multitool and/or small parts stored there. I've been a regular commuter for over a year, but the design flaw of not having enough prop revs to stay up is so obvious that I find it inexcusable.