Marina Medium Algae Scrubber is suitable for small glass and acrylic aquariums, features unique angled cleaning head that provides better control, increased pad-to-surface contact, and easier access to hard-to-reach
Concave Mirror, Material: Glass, Round, designed for physics and educational uses, thickness varies as they are not designed to be consistent in that respect, Because of their educational use design, there may be minor imperfection, Size: 2in Diameter, 50 mm Focal Length, 3.3mmThick
Convex Mirror, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, Optically worked, silvered back with protective coating, Size: 1.5in diameter, 200mm Focal Length
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 500mm focal length, Lens measures 3in diameter, 0.1 weight
Crystallizing Dish, made of high quality, heavy duty, borosilicate glass, Flat bottom, no spout, Dish measures 1in tall, 1.6in diameter, Perfect for any science or home laboratory, Strain Point -515 deg C, Annealing Point 565 deg C, Softening Point 820 deg C, 20ml capacity
Convex Mirror, Material: Glass, round, designed for physics and educational use, Because of their educational use design, there may be minor imperfection that do not affect physical function, Bulk lens and mirror set available upon request, Size: 3in Dia, 150mm FocalLength, 3.3mmThick
Convex Mirror, Material: Glass, round, designed for physics and educational use, Because of their educational use design, there may be minor imperfection that do not affect physical function, thickness varies as they are not designed, Size: 3in Dia, 300 mm Focal Length, 3.1mm Thick
Convex Mirror, Material: Glass, round, designed for physics and educational use, Because of their educational use design, there may be minor imperfection that do not affect physical function, thickness varies as they are not designed, Size: 3in Dia, 150 mm Focal Length, 1.2 mm Thick
Convex Mirror, Material: Glass, round, designed for physics and educational use, Because of their educational use design, there may be minor imperfection that do not affect physical function, thickness varies as they are not designed, Size: 3in Diameter, 100mm Focal Length, 2.8mmThick
Equilateral Prism, Material: Glass, Useful for Experiments in Optics, Light Refraction and Wavelengths, Designed for physics and educational uses. Because of their educational use design, there may be minor imperfections that do not affect physical function, Size: 3in (75mm) x 1in
Crystallizing Dish, made of high quality, heavy duty, borosilicate glass, Flat bottom, no spout, Dish measures 1.1in tall, 2in diameter, Perfect for any science or home laboratory, Strain Point -515 deg C, Annealing Point 565 deg C, Softening Point 820 deg C, 40ml capacity
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