Heros Wooden Stacking Blocks 100 Piece Set "Little Architect": Ages 2 & up Heros Wooden Stacking Blocks 100 Piece Set "Little Architect". Heros toys are still made in Germany: made from PEFC or FSC-certified Germany & Austrian natural forest wood. Heros toys also meet the extensive requirements of European standard EN 71. Blocks are presented in a cardboard drum: 9" diameter x 10.25" tall. Ages 24 months & up.