3-Prong Double-Adjustable Universal Clamp with Boss Head Electricity & Magnetism_Magnetism Pairs 50mm of aperture with

Pairs 50mm of aperture with a 150mm focal length on a double-concave glass lens at ~5

For classroom and stockroom room-condition monitoring

Borosilicate glass rectangular convection tube at 380 by 300mm with a filling funnel

sized to protect a pair of 50mm (2-inch) bar magnets between lessons and isolate them from steel benchtops

and series circuits

3-Prong Double-Adjustable Universal Clamp with Boss Head Electricity & Magnetism_Magnetism Pairs 50mm of aperture withThree prong double adjustable universal clamp with an integrated bosshead and vinyl coated prongs, gripping round bottom flasks, condensers, and tubes during distillation and reflux.