I know I should have read it better before buying. My mistake. It doesn't fit on a male bike. The reflector in the back is in the way and it won't fit in the front under the seat because of the bar. I haven't tried it on a female bike yet, though, but I can already tell it won't fit behind the seat because of the reflector that I rather not remove.
This is a good price for a saddle bag but the dimensions are nowhere near what is reported. Instead of 10 X 6 X 4 it is actually 6 3/4 X 4 1/2 X 3 1/2 deep (this expands to 7" deep).....a typical under the seat bag capable of holding a spare tube.& some type of lock. Quality is good but make sure you want to have a clip on.....I didn't pay attention to this fact but will be able to rig it onto my bike anyway.
This item is bigger then what it appears on here. I am very pleased with the size. I had to make adjustments to install since my seat has extra cushion and won't allow me to use the brackets included. I used cable tie straps instead and works like a charm.