The K-Optics Advanced Kit is a great tool to study light in general and interference in particular.
It includes the first steps into optics up to more advanced interferometry experiments.
This kit is assembled on a (2×2) K-Optics modular optical table.
 
For further reading about this product, see Guidance Archive

Included Experiments:
1. Linear Optics Experiment
2. Young's Double Slit Experiment
3. Michellson Interferometer