Children are fascinated by the smooth, grippy texture, colors and odd shapes of these Junior Rainbow Pebbles®, packaged in a convenient carry jar. Featuring natural-colored pieces, these stacking pebbles are ideal for use outside or to create natural-looking art! • Stimulate visual and tactile play. Colorful, warm and grippy, children will build finger dexterity, sort and classify and create stunning designs and patterns. • Kids aged 18m+ love the odd shapes of these math pebbles. They're ideal for learning to sort by size or color. • 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! • Introduce toddlers to STEAM concepts! This creative construction set will inspire patterns, light and color exploration and creative designs. This Mini Jar set of Junior Rainbow Pebbles® - Earth Colors includes 36 pieces in 3 shapes and 6 colors: blue, green, gray, red, orange and yellow. Activity Guide included. Sizes range from 1.6"L - 2.9"L.