Ready2LearnTM Paint and Clay Explorers. Here s a super set of four (4) heavy duty rollers with 1 1/2 wide unique inventive and clever designs for use with paint or clay: A) 8 line wavy continuous pattern; B) small medium and large dots in random pattern; C) border pattern of lace-like squiggles; and D) 7 line dots dashes and arcs in a continuous pattern. Each 5 durable plastic comfort-grip handle features a unique design molded in hard rubber on a sturdy roller. Rollers are easily cleaned allowing for child-safe long term use. Grade: PreK-2. Made with the Best Quality Material with your child in mind. Top Quality Children s Item.