6 x 4" Plastic Mirror, 10-Pack archive-pending 5-inch slots arrayed on a

5-inch slots arrayed on a 20-inch polished hardwood stand accommodate simultaneous gravity filtrations across student workstations in chemistry classrooms

Ten-pack of 6V flash-lamp bulbs on E10 miniature Edison screw bases

Pairs a 90 by 45mm semicircular face with 15mm thickness on a glass prism block

and pneumatic demonstrations

Used to read the microampere-scale currents found in photodiode and transistor-bias circuits

6 x 4" Plastic Mirror, 10-Pack archive-pending 5-inch slots arrayed on aDesigned for safer per desk reflection work, ten 6 by 4 inch acrylic plane mirrors arrive as a 10 pack, lightweight and shatter resistant for image formation and ray tracing experiments.