Purple Molecular Model Atom, 2.2cm, 4 Holes, 10-Pack

This 10-pack of purple balls with 4 holes each provides replacement or additional parts for molecular model sets. The balls measure 2.2cm in diameter and are used as atom representations in ball-and-stick molecular models that provide a visual and kinesthetic aid for studying molecular structure and properties. The 4-hole configuration corresponds to atoms that form four bonds in molecular structures. This pack is useful for expanding an existing molecular model set or replacing lost components.