Heavy Wall Borosilicate Glass Test Tube with Beaded Rim, 100-Pack Graduation Color_Blue and multiply torque

and multiply torque

and superficial — mount side by side for comparative angiosperm reproduction teaching

Five-percent pre-mixed starch solution at 500mL

with Class A tolerance and calibration-to-deliver for precise serial dilution and tissue culture dosing

sized so students don't switch between two hand tools while preparing leads for student-built bench circuits

Heavy Wall Borosilicate Glass Test Tube with Beaded Rim, 100-Pack Graduation Color_Blue and multiply torqueThick wall borosilicate glass body and fire polished beaded rim resist cracking under repeated thermal shock and stoppering, sold as a hundred piece class set.