Product details
 
It is created from one Takumi's desire to make drip coffee that is easier and tastier. A casual and authentic drip coffee brand with the "three masters" that the creator is particular about. Deep roasting brings out the aroma and richness. 
 
Instructions: simply pull the hook on the cup gently to open the filter mouth wide. No need to cut off the filter. This will reduce the stress when making coffee. The hook is flexible an dthe filter is designed to keep it square. 
It fits tightly in teh cup and the filter does not sllip.