The brightly colored material is soft and flexible, yet durable enough for lots of touching and squeezing. Each shape has a recognizable geometric form: triangle, circle, oval, rectangle, square, hexagon. The surfaces have raised bumps, ridges and grooves that reflect the overall shape and stimulate the sense of touch. Each textured bead has an extra-large threading hole, making it easy to string them all together using a variety of materials. Use this set of sensory beads to help kids reduce stress while developing fine motor skills. The material is excellent for art activities. Press the shapes into clay to create fun, squishy patterns. Dip them into paint or press them into an ink pad to create colorful artwork!