22" Mounted Chromosome Model, Extra Large Subcategory_Electrostatics letting gas evolution and electrode-color

letting gas evolution and electrode-color changes stay visible from the back of the room during water-decomposition lectures

5-inch stainless steel rod cradle burettes

all 23mm thick

sized for precision-stripping multistrand and solid-core circuit wire ahead of soldering or terminal-block insertion

7 geometry pushing the focal point downrange for projection-style real-image formation across long benches

22" Mounted Chromosome Model, Extra Large Subcategory_Electrostatics letting gas evolution and electrode-colorExtra large mounted chromosome model at 22 inches supports classroom teaching of chromosome structure, centromere position, and chromatid arrangement.