labpro Resistance Box Plug Type Range 1-500 Ohms Export Quality symmetric compound bar pendulum Use fine focus knob to

Use fine focus knob  to get the best immage

"name":"Spectrometer Prism Crown 32X32 mm Size"

variant=8133277319266"

with each beam working at different increments (1-10 grams

c in steps of 2

labpro Resistance Box Plug Type Range 1-500 Ohms Export Quality symmetric compound bar pendulum Use fine focus knob toResistance Box Plug Type Range 1 500 Ohms Resistance Box Plug Type Range 1 500 Ohms Superior Quality Heavy Brass Metal Blocks Are Bound To Bakelite Plate By Means Of Nuts And Screws Securing Rigid Fixation And Eliminating Any Chance Of Contact Error Creeping Due To Loosening Of Plugs And Lugs Which Are Cut To Fine Taper And Are Interchangeable. Plug Heads Are Machine Moulded, Of Heavy Insulated Bakelite In Beautiful Shapes. The Boxes Are Made Of Teak