These sponge moistener cups might seem simple, but they're one of those office supplies you don't realize you need until you have them! The set comes with 7 separate cups, each about 3 inches in diameter and 1.5 inches tall. They've got a clear plastic container so you can easily see when the sponge needs more water, and the bright red sponges make it obvious which ones are in use. Perfect for moistening envelopes, labels, stamps, or anything else that needs a quick dab of moisture. The polyurethane sponge holds water really well without dripping everywhere, and the plastic cup is durable enough to handle daily office use. You can place them at different workstations since there are 7 in the pack, or keep a few extras on hand. They're lightweight (only 0.06 lbs each) so they won't take up much space on your desk. Honestly, if you do any amount of mailing or paperwork, these little cups save you from the hassle of licking envelopes or searching for a wet sponge. Simple, effective, and way more hygienic than the old-fashioned method!