Mounted Color Filter Set, 7 Monochromatic + 1 Tri-Color Base_Octagonal One-meter wooden lever graduated in

One-meter wooden lever graduated in centimeters on a knife-edge fulcrum base

supporting dental hygiene and pathology teaching

and small diffraction objects in the optical-bench beam path for repeatable interference and diffraction work

Generates a steady steam bath around a sliding thermometer through a 180 by 115mm copper vessel with filling tube

Ten-pack of 16mm steel ball bearings sized as a larger projectile for ramp experiments

Mounted Color Filter Set, 7 Monochromatic + 1 Tri-Color Base_Octagonal One-meter wooden lever graduated inEight color filters cyan, violet, magenta, red, yellow, blue, green, and tri color sit in 2 x 2 inch plastic mounts with 1 x 1. 38 inch apertures for use against a ray box source.