This is the Delfonics roll pen case that I bought from Tokyu Hands at Westgate Shopping Mall the other day. It's quite pricey but I guess if you're going to use it for a long time, it's still quite worth it. It's definitely much cheaper than the Pilot Pensemble roll case that I reviewed recently.
It's a simple roll pen case made of tough canvas on the outside. Mine's the bright orange version but there are also other colours.
This is the strap that goes around to secure the case. Depending on how bulky the pens are inside, you can use either one of the click-on buttons.
It uses the clothed rubber band with slots for the pens. There are eight slots. The last two slots are the biggest. The six other slots are smaller and the sizes are not very consistent. A thick fountain pen like the TWSBI Vac 700 will have a difficult time going into a small slot.
There's a flap on top to protect the pens when the case is rolled up. On the left is the large TWSBI Vac 700. Usually, I keep only five pens in the case.
There are actually two sizes for the case, small and large. Mine's the small one which is good enough for typical size fountain pens. If your fountain pen is more than 14.5cm, then go for the larger one.