Giant-size molecular model kit standard kit

Large, lightweight molecular models for classroom demonstration of organic and inorganic structures. For building models to scale of 20 cm/Ã… and 8 cm/Ã…. Bond lengths range from 5.5 to 27 cm. Atomic centers are 5 cm in diameter, finished in standard atom colors, and have a reinforced vinyl receptor at each bond position for insertion of connecting rods (bonds). All model kits include storage box and instructions. Additional atoms and bonds are available separately.