"The Mystery of Lyle and Louise"

Individual spherical glass lenses.

Makes demonstrations viewable by the entire classroom.

Ideal selection for use with a ray box.

Provide a convenient way to illustrate the properties of lenses to students.

All Types and Sizes for all Optical Applications.

This replacement high-concentration diamond wheel is six inches in diameter.

Economical noncontact thermometer fits right in your pocket!

These ceramic ring magnets have an inside diameter of 35 mm and an outside diameter of 45 mm.

This tubing is made of red rubber.

Visualize particles and integrations.