I use products for vertical. Until now, because it was a pen stand with a shape like an empty can, "Gotcha" suddenly made it difficult to remove what you need, because it can be stored in 4 different places, take the necessary pen immediately can do. Also, vertical use can be used very compactly. Although it is partitioned into four blocks, one of them is a shallow shape and the pen does not enter. It is about eraser, sticky note, sharp core. When two items are used side by side, storage volume is perfect, space saving is also available! I think that it is the best.