Spend more time painting and les time cleaning with this system designed by bob ross, host of tv s joy of painting show. The bob ross brush cleaning system includes 1.89-liters of bob ross odorless Thinner for cleaning brushes and tools and to be used as a medium, the bob ross cleaning screen (4-1/2 by 4-1/2 by 1/2) so you can keep your brushes in the best shape possible, and the bob ross brush beater drying rack (11-1/2 by 5 by 5-inch) to ensure rapid drying of your brushes. Instructions for using the system are included on the packaging. Thinner conforms to ASTM D4236. DANGER-Thinner is combustible. Keep away from heat or flame. Made in USA.