These dual-lid storage cups keep paint from spilling out. The outer lid securely seals the cup, while the inner lid keeps the paint from spilling out if the cup gets knocked over. Item #PAC5100 includes 10 round 3" diameter cups with colored lids. Lids are 3.25" diameter with 0.5" lip for a total 3.75" diameter. The color of the lid easily identifies the color of the paint inside. It also serves as a brush holder! Each cup is marked with an easy-to-read fill line.