Variable Angle Glass Prism, 20° x 20° x 140° Lab Equipment and Supplies_Lab Equipment the leaded body delivering pronounced

the leaded body delivering pronounced spectral separation for comparing dispersion against crown and flint baselines

the smaller-tube counterpart to the 300x44mm standard rheostats with the same constantan-winding construction

75 inches on a swivel boss head that fits rods up to 18mm

Dual metric and imperial markings on this PVC-coated fiberglass thirty-meter tape measure

Variable Angle Glass Prism, 20° x 20° x 140° Lab Equipment and Supplies_Lab Equipment the leaded body delivering pronouncedPairs a 20 apex with 20 x 20 x 140 geometry on a glass prism, the apex angle pushing deviation past the small angle linear regime into the curved deviation vs angle zone.