Base Ten Set - RE-Wood - 141 pcsCAUTION: Not suitable for children under 3 years. Small parts. 100 yellow units, 10 green rods of ten, 20 orange rods of five, 10 blue hundred flats and 1 red one thousand cube of RE Wood. Packed in a cardboard box with instructions. RE Wood is made from 100% recycled materials, PEFC certified and can be recycled again and again after use. See our entire range of Wissner aktiv lernen products! About Wissner aktiv lernen: For over 45 years, we have