RGB/CMY Mounted Color Filter Set, 50 x 50mm, 6-Piece Racks & Stands_Flask Stands Rotary-knob resistance substitution board offering

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

these plastic forceps provide precision grip for specimen manipulation without damaging delicate tissues or structures

tightened with an Allen wrench for constructing lattice frameworks on laboratory benches

this metal wave apparatus pairs the rotary handle with a degree scale so students can read phase against vertical displacement

RGB/CMY Mounted Color Filter Set, 50 x 50mm, 6-Piece Racks & Stands_Flask Stands Rotary-knob resistance substitution board offeringThree primaries (red, blue, green) and three secondaries (cyan, magenta, yellow) sit in 50 x 50mm mounts, supporting both additive and subtractive color demonstrations in optical box setups.