I LOVE my case!!!! The open flap comfortably holds 12 pens. I currently have in the box side 6 sharpies, 10 pen like highlighters, 4 pens/pencils, an expo maker, 2 packs of lead, a laser pointer, correction tape, and I still have room for more. Construction feels very sturdy. I feel like my belongings are secure and safe in this case. I would easily recommend this case. My only non-issue is I wish they made one for lefties with the zippers mirrored. But this is a great pen case you will not be disappointed in.

It's such a convenient case. Pricey, yes. But I do use it a lot. I only wish the elastic inside was a bit tighter. I know one one side the elastic is "stitched" so it can contain pencils more tightly, but on the other it's just the one elastic band, and it's so loose, that it moves around a lot and just personally bugs me.

I actually use this for makeup and it's perfect. I keep the makeup in the main compartment and brushes in the other side.

I wanted to find a bag or case that would allow me to carry charger, adapters, etc. along with my pens and markers. This case does it- LOVE it! The charging block from the 13" MacBook fits perfectly in the pouch along with dongles, cords, etc. The pen organizer fits my Micron, pen, multi-pen, pencil, eraser stick and ruler on one side, with highlighters and Sharpies on the other. So far it has been super durable, but it does mostly live in my backpack. Zippers feel above average and slide smooth. At first it seemed a little pricey, but I got two cases into one. 5 stars!

This is the natural choice for a power user or teacher that might need to carry a massive amount of tools. The Cubix Round Zip Box Large Black Pen Case can hold about 35 pens in its two compartments: a slim pen organizer with elastic holding loops that opens flat on one side, and an over sized compartment for many loose tools on the other side.

The thinner section can hold 10-12 pens neatly organized on elastic loops and mesh pockets. This case is long enough to accommodate even the extra long Rotring Art pen. The great benefit of this layout is that you can safely transport your favorite tools anywhere in the case zipped tight, and as soon as you open it your sketching kit is ready to go without having to waste time looking for a favorite pen or pencil.

The left side has three separate stitched loops, and the right side has a single elastic loop. The holding loops are great for organizing your writing and sketching tools according to brand, size, or graphite degrees. It makes it easier to find a specific nib size and speed up your work flow. The mesh pockets on the bottom are also useful for storing small objects like block erasers and lead pointers. This is exactly the same layout as my first Olive Cubix pen case that I use for storing my Mitsubishi Uni 2 mm leadholders and Faber Castell Ecco Pigment liners. It has proven to be quite durable and useful after years of service.

The larger compartment is roomy enough to hold the fully-loaded slim case within. All zippers work smoothly without getting stuck in the corners. The large case is big enough to hold supplies for an entire class, and the slim case is a great choice for storing and organizing a compact sketching kit.

The pen organizers keep all your favorite tools within easy reach and in your preferred order anytime while the large compartment allows you to carry vast amounts of spare sample tools to share.