Key Features :
i : MASTER 3D SHAPES -- This early geometry set includes 12 hollow shapes in 6 transparent colors. Each shape comes with a removable stopper in each base.ii : MASTER FUNDAMENTAL CONCEPTS -- This early STEM resource assists in the understanding of measurement, volume, capacity and shape attributes.iii : DEMONSTRATE VOLUME -- Fill these colorful shapes with sand, water or other substances to show volume. By looking through the transparent plastic, kids can understand which shapes hold the most volume.iv : SHATTERPROOF -- Made from washable, durable, shatterproof plastic, these shapes are designed to last for years of home or classroom use.v : EASY CLEANUP AND STORAGE -- The set is packaged in a sturdy box, which features a cardboard sorting tray to keep the shapes organized.vi : LEARNING THROUGH PLAY -- Our products inspire children to play with purpose. Play is the best teacher! Our high-quality, educational resources fulfill learning needs from 18 months to 12 years.