Hexagonal Hollow Stopper with Flat End, 14/23, Borosilicate Glass Size_12 Inch Dual-screw adjustment on a heavy-duty

Dual-screw adjustment on a heavy-duty spring-loaded three-finger jaw opens to 2

supplied as a 10-meter installation roll

this apparatus pairs two 8-inch polarizing filters in a wooden frame with four acrylic shapes that show photoelastic patterns when squeezed

the wider square-face proportions handling broader incident beams in dispersion and refraction demonstrations

25 inches tall supports glassware over Bunsen burners for bench heating

Hexagonal Hollow Stopper with Flat End, 14/23, Borosilicate Glass Size_12 Inch Dual-screw adjustment on a heavy-dutyHexagonal hollow stopper in heavy duty borosilicate glass features 14 23 cone with flat end for sealing ground joint vessels and apparatus.