Chain Drive with Tensioner Mechanical Demonstration Model Meters_Electrical and 60mm sheaves on a

and 60mm sheaves on a 4-inch mounting rod

showing the deflection of a current-carrying wire through a fixed magnetic field via 4mm safety sockets

Hand-painted male pelvis model exposes the narrower male-specific proportions and pelvic inlet shape compared to the female pelvis for sex-difference anatomy teaching

this deluxe optics kit covers reflection

Fitted with a grey hand knob for tightening and a small plastic pulley

Chain Drive with Tensioner Mechanical Demonstration Model Meters_Electrical and 60mm sheaves on aTensioner pulley keeps chain engagement consistent on this hand cranked chain drive, viewable between clear plates so students watch sprocket teeth grip and transfer torque under load.