Seems like for 50$ PH could've included this device! 
The purpose of using an organic chemistry molecular model kit is to create three-dimensional models of molecules, allowing for a better understanding of their structure and chemical properties. These models can also aid in visualizing molecular interactions, reactions, and mechanisms.
When choosing an organic chemistry molecular model kit, it is important to consider the quality of the materials, the variety of atoms and bonds included, and the number of models that can be built. It is also helpful to look for kits with clear instructions and a storage case for easy organization.
There are many reputable brands that offer high-quality organic chemistry molecular model kits, such as Molymod, Darling Models, and Prentice Hall. It is recommended to read reviews and compare features before making a purchasing decision.
Yes, an organic chemistry molecular model kit can be used for advanced studies, including research and graduate-level courses. It can be a helpful tool for visualizing complex molecules and predicting their behavior in various chemical reactions.
To make the most out of your organic chemistry molecular model kit, it is important to familiarize yourself with the different types of bonds and angles between atoms, as well as common molecular shapes. You can also use the kit to build and compare different isomers, and to practice drawing and visualizing molecules in 3D.