Brass Slotted Mass Set with Hanger, 9 x 100g (1000g Total) Subcategory_Temperature and Heat Hand-cranked to convert mechanical work

Hand-cranked to convert mechanical work into electrostatic energy

Three-times life size bladder and prostate model separates into two parts exposing the male urinary-reproductive junction for urology teaching

and radial symmetry for marine biology teaching

Shopping for someone else but not sure what to give them

Brass Slotted Mass Set with Hanger, 9 x 100g (1000g Total) Subcategory_Temperature and Heat Hand-cranked to convert mechanical workBrass nine piece 100 gram slotted mass set with a 100 gram hanger, each disc 37 mm in diameter and 11 mm thick, totaling 1000 grams for force, pressure, and pulley investigations in physics.