Iris Diaphragm with Adjustable Aperture, 3" Outer, 30mm Max Entomology & Zoology_Dissection Alcohol burner paired with a

Alcohol burner paired with a five-inch burner stand in a starter set

and a central control module

this large-capacity polypropylene measuring jug carries raised graduations and tolerates autoclave

Chrome-plated steel wire stand at 5 x 5 x 5 inches supports flasks and beakers above alcohol burners for classroom chemistry demonstrations

Designed to combine multiple colored light sources inside a single enclosed viewing area

Iris Diaphragm with Adjustable Aperture, 3" Outer, 30mm Max Entomology & Zoology_Dissection Alcohol burner paired with aAdjustable iris from closed to a 30mm maximum aperture inside a 3 inch black metal body, with a 2. 5 inch mounting rod giving 5 inches total length for standard optical bench setups.