drip coffee holder

sometimes these drip filters do not fit directly on the rim of mugs.

I've often used the plastic cone style filter to stretch the drip filter over but most times the width is too large and the "legs" of the drip filter cannot "stretch" far enough to "hang onto" the filter with the weight of the heavy saturated coffee grains

Anyway, I found this gadget at the 100 yen store that is adjustable 

You place it over the rim of your mug and then just place the drip filter on top

I think it works best on the type of mug on the left rather than the American type mug on the right.

p.s. these coffees that we got in Iwate were delicious