This is an item of stationery (paper or writing goods), or other small merchandise such as good-luck charms, mascot straps, et cetera.
Tamaki Kousaka wants to help when you need a tissue! This sturdy woven fabric item is just the right size to attach to any standard flat tissue box; it's held securely in place with elastic across the back. As Tamaki advises on one end of this handy item, "Always keep a box of tissues handy!"