Student Introductory Optical Bench Set Biology Wall-mountable beech wood draining rack

Wall-mountable beech wood draining rack measures 20 x 20 inches and holds up to 90 pieces of labware inverted for post-wash drying in chemistry labs

configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations

Six-piece 3-inch optical lens set combining three double-convex and three double-concave glass lenses at 200mm

25-inch frame for draining

Student Introductory Optical Bench Set Biology Wall-mountable beech wood draining rackMeter stick optical bench fitted with two supports, an object marker, screen carrier, card screen, and 38mm lens holder an inexpensive starter platform for image formation experiments.