( but what if you want to carry 5 boxes of 1 oz of 8's / 2 boxes of 1 oz of 9's / and a box of 1 1/8 oz of 7 1/2's.....( just dig thru the tube...)....
That little black bag on mine came with the cart - the bottom half is a cooler and has a blue ice thingy that came as well; but most courses now have water all over the place, so that means more room for other stuff........like snacks...............