Answer:

We are not give dimensions on the accessory pocket unfortunately. However, you can get an idea just by looking at the bag. This is a 2 ball roller so the length of the bag itself is going to be just over the length of two bowling balls due to padding. One ball is 9 inches so two would be 18 and then you can add a couple of inches for padding so the bag itself it probably close to 20 inches. The side accessory pocket does not go the full length of the bag. Also the width of the pocket is not very deep so you may think of it at around 2 inches deep so it will only hold small accessories like a towel or glove or maybe some tapes. I hope this helps.