Soft Bricks is a subtheme of Education that consists of 3 sets that ran from 2000 to 2013. As of today, the average annual growth of sets in Education Soft Bricks is approximately 1.5% per year.
Soft Bricks are the oversized foam bricks in LEGO Education, and three sets of them are listed. 9023 Soft Brick Activity Set from 2000 pairs a few large soft bricks in red, green and blue with DUPLO bricks for sorting and matching by size. 9024 LEGO Soft Imagination Set followed in 2005, with some bricks printed with eyes and smiles. 45003 Soft Starter Set from 2013 has soft 2x2 and 2x4 bricks in red, blue, green and yellow, a few with curved tops, big enough to build walls, towers and child-sized figures.