20 Metal Alloy Specimen Set in Die-Cut Case Lab Equipment_Water Stills 125-inch outer ring and a

125-inch outer ring and a thumbscrew rod grip from 5/16 to 5/8 inch for small-apparatus support

Captive 19mm brass ball on a rod-mounted Gravesande ring

Dense lead-flint glass prism at 28mm with refractive index 1

Plain bend receiver adapter in borosilicate glass features 19/26 socket and 19/26 cone for distillation collection with right-angle redirection

Plug-type resistance box with constantan-wire coils between split brass contact blocks

20 Metal Alloy Specimen Set in Die-Cut Case Lab Equipment_Water Stills 125-inch outer ring and aTwenty specimen metal alloy collection supplied in a die cut case with each sample individually labeled, sized for materials science comparison of composition and properties.