Extra Dense Flint Glass Prism, R=1.65 Prong_3 with a 6cm cylinder extending

with a 6cm cylinder extending to 16cm overall for suspending submerged specimens in the bucket

Class-visible 12-inch demonstration meter with magnetically damped moving coil and Perspex front-and-back panels

Greatly enlarged inner ear model exposes bony and membranous labyrinth alongside a sectioned cochlea for vestibular and auditory anatomy teaching

running on 220/240V mains for laboratory experiment work

Fifty-pack of 3mm steel ball bearings

Extra Dense Flint Glass Prism, R=1.65 Prong_3 with a 6cm cylinder extendingHeavy flint glass prism at refractive index 1. 65, the leaded body delivering pronounced spectral separation for comparing dispersion against crown and flint baselines.