I work as a fire alarm installer. Holds all my tools that I need. He has held up well. Big enough to put in my counter, gloves and all the little knick knacks I need when walking up the stairs. There are two main reasons why I gave this 4 stars. I read about it in other reviews and bought it knowing these things but I thought "You're just picky" or "I can live with that". But these two things can add even more frustration to the last and hectic day. 1. When worn on the waist, the handle makes it difficult to reach some things. Again this is for carry only, sometimes I leave it on the floor when I'm working on the board and that's not a problem as I can just toss the pen backwards. 2. Roulette holder. Sometimes when I put my bag on the floor it cuts my tape measure. If I wear it, it's no problem. I tried to buy a more compact tape measure but the same. I haven't lost my tape measure this way, but it's just annoying so I just don't use it. I put my tape measure in my pocket. Finally, the strap is a pin and loop, sometimes I wish I had a clip. But that's just a preference, not a problem. The strap is nice to throw over my shoulder or hang on the door panel when I'm working, so I still like that part. If this helped you, click the Helpful button! Thanks very much!