Hexagonal Hollow Stopper with Flat End, 19/26, Borosilicate Glass Neulog_Accessories and a second copper) for

and a second copper) for side-by-side comparison of conductivity and resistance

Handmade wooden spice rack holds twelve 6-inch borosilicate glass test tubes with caps and includes a filling funnel for kitchen-to-lab cross-over gifting

Interlocking polypropylene test tube rack holding 24 tubes up to 25 mm with a fold-up grid

Twenty-six-SWG bare constantan wire on a 125g reel at 0

Hexagonal Hollow Stopper with Flat End, 19/26, Borosilicate Glass Neulog_Accessories and a second copper) forHexagonal hollow stopper in borosilicate glass features 19 26 cone with flat end for sealing ground joint vessels and chemistry apparatus.