If you're tire of buying all your paint supplies separately, this is the answer for part of the problem. This set comes with a paint tray, paint roller, and paint roller cover. You get all in one for the easiest shopping ever! This set offiers easy clean-up, and is great for the seasoned professional, or the new home owner painting a wall for the first time! The tray is 12 1/2 X 10 1/2 X 2 Inches. Roller Is About 9 1/2 Inches in width with 2 inch diameter. The roller handle is about 6 inches long.