Children are fascinated by the smooth texture, bright colors and odd shapes of these Junior Rainbow Pebbles®, packaged in a convenient carry jar. Featuring clear pieces, these stacking pebbles are ideal for use on a light panel or anywhere that enables light to pass through! • Designed for toddlers. Encourage kids aged 18M+ to practice finger dexterity, stacking, counting and sorting. They love the odd-shaped, colorful pebbles! • Take these pebbles with you anywhere. The sorting pebbles are conveniently packaged in a storage jar with lid and carry handle. Perfect for play dates! • Multi-sensory for maximum fun! The smooth texture of these transparent Rainbow Pebbles® will delight inquisitive hands and display brightly on a light box. • Introduce toddlers to STEAM concepts! This creative construction set will inspire patterns, light and color exploration and creative designs. This Mini Jar set of clear, plastic Junior Rainbow Pebbles® includes 36 pieces in 3 shapes and 6 colors: blue, green, purple, pink, yellow and orange. Activity Guide included. Sizes range from 1.6"L - 2.25"L.