Giant Human Ear Model, 5X Life Size Handle Type_Wood and mechanical-advantage experiments (stand base

and mechanical-advantage experiments (stand base and support clamp sold separately)

and 3 rods for multi-configuration study

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

Zinc alloy natural gas Bunsen burner with flame stabilizer ships with a 2-foot neoprene gas hose for quick bench hookup in chemistry classrooms

Giant Human Ear Model, 5X Life Size Handle Type_Wood and mechanical-advantage experiments (stand baseFive times enlarged ear model reveals cochlear canal, ossicles, and vestibular structures at visible scale for group classroom demonstrations of auditory anatomy.