Check the listing for details. Mega Molecules M Advanced Chemistry Model Set 2nd Edition Learning Toy Set. Condition: Used. Listed at 12.99 USD. Discover the world of chemistry with the Mega Molecules M Advanced Chemistry Model Set 2nd Edition. This set is perfect for advanced chemistry students of all ages, from 8 to 80 years old. With a focus on MEGA brand, this set allows you to explore the world of molecules, atoms, and chemical reactions in a fun and exciting way. Featuring a wide range of recommended age ranges and age levels, this chemistry model set is perfect for anyone with an interest in science. With the ability to create a variety of different molecules and chemical reactions, the Mega Molecules M Advanced Chemistry Model Set 2nd Edition is an essential addition to any educational collection. Whether you're a chemistry student, a teacher, or just someone who loves to learn, this set is sure to provide hours of educational fun.