You'll be "on a roll" with paint and clay craft activities as easily as using a rolling pin with this great set of 4 designs. All rollers are 7" long and 1-1/2" in diameter and made of very durable plastic and hard rubber. Soap and water is all you need for an easy clean-up. Both the young and young-at-heart will be very creative while developing coordination skills and artistic interests! Set of 4 styles include: - Dot pattern of various sizes in a random array - Wave pattern - Zigzag Squiggles - Parallel multi-width stripes