I don't know who designed this bag, but it is totally unfunctional. The bag is being put on subwoofer top, when it is standing vertically. However if you mount the wheels onto the back, you cannot put the bag on! This is just ridiculous. It should have been designed to be put on top when subwoofer is layed on wheels, like all such bags are designed to.
Not to mention the bag is just so hard to put on, because it's made just to fit subwoofer. It could have been a little bit bigger.
So now i have to choose, whether i want wheels or a bag. Waste of money!