Feelable cup / visually impaired product

People, visually impaired, face embarrassing and difcult situations every time when they try to
drink water. For instance, it is difcult for them to estimate how much water is in a cup, when
pouring water into the cup, and how much water is left in the cup, when holding the cup on a
table. ‘Feelable cup’ solves the problem with the principle of water pressure. Grooves are cut on
the cup several times and tube membrane is put on grooves to block them to make tube bulge
with water pressure. Users can know the amount of water in the cup easily by holding the cup.