Comprehending protein structure can be difficult. Students use this kinesthetic kit to investigate the atomic structure of the 20 amino acids. It is this atomic structure that gives each amino acid its acidic, basic, hydrophobic, hydrophilic, and cysteine chemical properties. These properties all influence the primary, secondary, and tertiary structure of the protein. By actually folding hydrophobic sidechains inward and hydrophilic sidechains outward students experience the laws that govern protein folding. Multiple kits can be combined together to model secondary and tertiary structure. Each set includes a magnetic chemical properties circle, an amino acid sidechains list, 22 amino acids, a 4-foot Mini-Toober, 15 metal clips and 6 hydrogen bond connectors.