5-Part Human Ear Model, 4X Life Size Subcategory_Filtration Equipment Virtually unbreakable ABS-plastic dynamics cart

Virtually unbreakable ABS-plastic dynamics cart pair with two-level spring punches

Student pulley demonstration set with a range of pulleys for mechanical-advantage and force-multiplication comparisons

this motor-generator pairs a split-ring commutator against slip rings with bulb indicators

25-inch Magdeburg-hemisphere suction cups with release stubs

universal 50 x 50mm slide holders

5-Part Human Ear Model, 4X Life Size Subcategory_Filtration Equipment Virtually unbreakable ABS-plastic dynamics cartFive removable sections separate the enlarged ear into outer, middle, and inner components, exposing tympanic, ossicular, and cochlear detail for auditory teaching.