These are the coolest lids! Made of heavy duty plastic (remember the great Tupperware from the 1970s?!) with a removable flip-top lid. The pour spout makes it easy to pour out your paint without making a mess along the rim of the can. There are holes on either side to aid in getting the paint to drip back nicely into the quart. The back side of the pour spout features a nice, open area that is perfect for a 2" paint brush. A 3" brush will fit also, but fits more snugly. These lids fit VERY tightly over the top of your paint quarts. I put them to the test letting my full quart of paint roll around the trunk of my van to be sure there were no paint leaks with perfect success. My workshop participants have called them a real value at $5.00. Washable and reusable.