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: 1000 mm focal length, Lens measures 3in diameter, 0.1 weight
Test Tube, Material: Made from high quality, heavy duty, Borosilicate Glass, Light wall with Rim, Dimension: 150x16mm, Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures, capacity: 20 ml, PK48
Test Tube, plain, with bakelite screw cap & rubber liner, Material: Made from high quality, heavy duty, Borosilicate Glass, Dimension: 75x16mm, capacity: 5 ml, pack of 24
Test Tube, Flat bottom, with bakelite screw cap, Material: Made from high quality, heavy duty, Borosilicate Glass, Dimension: 16x55mm, capacity: 5ml, pack of 24