Infection Lesson Kit, 4 Leukemia-related petriscope models, lesson plan, consumables for 20 students, Help students grasp concepts in blood-cell biology and diseases, Unique Method for Teaching Hematology, Reusable Components
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: 200 mm focal length, Lens measures 3in diameter, 0.1 weight