Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
DC5446
Price: FREE
Spin the disk and watch the electrons orbit the nucleus! A great way to demonstrate the classical Bohr model. Look at the Dazer from different angles and you can actually see the protons, neutrons, and electrons in the atom—with a three-dimensional effect.