CONVENIENTLY PACKAGED TO TAKE ANYWHERE -- Conveniently packaged in a storage jar with lid and carry handle. HELP YOUR KIDS LEARN MATH -- Sort and sequence these pebbles to develop early math skills. Manufacturered by edxeducation. A DELIGHTFUL TACTILE RESOURCE -- The smooth warm texture of these pebbles will delight inquisitive hands. DESIGNED FOR 18M+ -- Young learners aged 18M+ will build their fine motor skills When stacking these odd-shaped plastic pebbles.