Ensure hours of interactive and educational fun with this 141-piece interlocking base ten starter set from Learning Resources. FEATURES: Units are made of durable, washable plastic for years of hands-on activities, Help students understand abstract base ten concepts; including place value, estimation, operations and fractions. WHAT'S INCLUDED: 141 pieces include: 100 units, 30 rods, 10 flats, 1 cube, and 96-page Base Ten Activity Book. DETAILS: Age: 6 years & up, 4.8"H x 9"W x 11.8"L, No assembly required, Wipe clean, Plastic, Imported, Model. LER6356. 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.