With a slightly inclined angle design, the cup washer base drains water and residue into the sink without piling up. It's not an unnecessary luxury, but a fun kitchen gadget to make life easier. Perfect for rinsing that oddly shaped glassware, from baby bottles to wine glasses to coffee cups even vases, as long as the drinkware mouth is between 1 to 4 inches in diameter--you'll never need to cram your fist into a mug again! Super cool gadget, saving time and effort, making glass rinsing just fun enough that everyone will enjoy it.