Rimless Thick Wall Borosilicate Glass Test Tube, 48-Pack Size_86 x 13mm Larger-aperture 75mm lens at a

Larger-aperture 75mm lens at a 15cm focal length captures more of a specimen at a glance

Finest 32 SWG nichrome wire in the line on a 1000-foot reel

Peg-style plastic drying rack that holds inverted test tubes for air drying after cleaning

and metamorphic rocks alongside volcanic structures on a wall-mountable labeled backboard

identifying labradorite among the plagioclase feldspar series in mineral work

Rimless Thick Wall Borosilicate Glass Test Tube, 48-Pack Size_86 x 13mm Larger-aperture 75mm lens at aBorosilicate 3. 3 glass rimless thick wall test tube distributed as a forty eight piece pack for small group classroom experiments and chemistry bench use.