My toddler received this as a gift and while it is too advanced for her at the moment (she got really mad as the magnets were very strong and her little hands couldn't maneuver them into a construction without the magnets clicking together where they shouldn't), I can appreciate their value as a STEM toy. Definitely cheaper bought online off Amazon than from stores here in SG.
Each piece is made from Honduran hardwood (er wood from Honduras) and finished with water-based tints. Think wooden blocks but upgraded version with magnets for imaginative play.