MathLink Stackable cubes are easy for little hands to connect and twist apart. They're great for counting to 100 by ones and tens, grouping, and one-to-one correspondence. Little learners will want to get their hands on these fun math manipulatives that can be connected and twisted apart over and over again, MathLink Cubes link together on all sides of each cube with geometric shape cut-outs for more complex patterning activities, Cubes measure 3/4", 10 different colors. WHAT'S INCLUDED: 1000 MathLink cubes. Imported, Age: 5 years & up, Model no. LER4287, 3.9" H x 16.1" W x 8.5" D, Wipe clean, Plastic. Gift Givers: This item ships in its original packaging. If intended as a gift, the packaging may reveal the contents. Size: One Size. Color: Multi. Gender: unisex. Age Group: kids. Material: NONE.