The KR Joey Pro is a great add-a-bag option. Instead of purchasing an expensive single tote just slip this on the handle of your roller bag to add additional space! Or you can carry this to the bowling alley as a one ball tote, although, this doesn't hold bowling shoes.
Helping hand to carry that extra ball
Alternate strike ball carrier. Saves going to larger wheeled bag.
Easy to take extra ball-very secure.