These versatile plastic cubes connect on all six sides and can be laced together as well! As students work on patterning, counting, and operation skills, the 3/4 inch (2cm) square cubes will build small-motor and eye-hand coordination too. Set includes cubes in 10 bright colors and an activity sheet. Set of 100 cubes in a clear plastic jar.  WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.