Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length, Alternate Model Capacity_125mL " The kit's hydrophilic polymer

" The kit's hydrophilic polymer instantly absorbs water and expands to over 40 times its original volume

Autoclavable polypropylene draining basket measuring 40 by 40 by 11 cm

this low-current 2mA buzzer on a demonstration base sounds whenever current flows through the closed circuit

Pack of 50 solid rubber stoppers in assorted sizes provides acid and alkali resistance for comprehensive laboratory vessel sealing applications

sized for student-bench stability during routine glassware assembly

Optically Worked Double Convex Glass Lens, 75mm Diameter, 300mm Focal Length, Alternate Model Capacity_125mL " The kit's hydrophilic polymerAlternate model 75mm double convex glass lens at 300mm focal length, the optically worked surfaces and ground polished edges parallel to the main line 300mm focal lens for backup stock use.