Persons who use the kit like it because it is cheaper and larger than most of those on the market now.Why Choose this Chemistry Set for Adults: This kit has three electron clouds with different colors to make it easier to understand structures. It has a unique electronic cloud model.This LINKTOR Chemistry Molecular Model Kit was designed for both learners and teachers alike. We have this molecular model kits chemistry set listed under our favorite recommended chemistry sets for adults because of the versatility it has. Wrapping Things Up: The Best Chemistry Sets for Adults Our Favorites for Best Chemistry Sets for Adults LINKTOR Chemistry Molecular Model Kit