Foam Roller, sponge roller, pattern roller 1.foam rollers with variety of patterns 2.non-toxic,odor-free,ideal for children. Foam Roller, sponge roller, pattern rollerFeature: foam roller, Roller patternPoly foam rollers with a variety of patterns and colors,non-toxic,odor-free,good quality at reasonable price.Ideal for children.The rollers create fun patterns with tempera, acrylic, watercolor, ...