Most of the 36 "atoms" in this set are represented by 23 mm-diameter plastic balls with hydrogen represented by 17 mm-diameter balls. This smaller molecular model set is just right for individual student use to better understand the structure of both organic and inorganic molecules. The bonds are linking pieces that hold the molecule together securely and can easily demonstrate double and triple bonds. All pieces are made from unbreakable polypropylene.

Instructions with pictures of sample molecules are included. This kit comes in a durable ABS plastic storage case.