Heavy Duty Borosilicate Glass Beaker with White Graduations Capacity_0.5mL Freezer-safe polycarbonate microcentrifuge tube box

Freezer-safe polycarbonate microcentrifuge tube box holds 100 0

Wood-handled collecting net pairs a sturdy grip with fine mesh netting for classroom field trips and introductory entomology collection work

a sliding front door

providing a fixed sighting reference for telescope and spectrometer alignment on the optical bench

with a multi-slit card delivering one wide beam or 1/3/5 pencil rays

Heavy Duty Borosilicate Glass Beaker with White Graduations Capacity_0.5mL Freezer-safe polycarbonate microcentrifuge tube boxHeavy duty borosilicate 3. 3 glass beaker with thick uniform walls and white printed graduations, engineered for durability in routine heating and measuring.