Brass Slotted Mass Set with Hanger, 4 x 50g (250g Total) Lab Supplies_Scoops & Spatulas Entry-level two-part human skull model

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

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

integrating directly into circuit demonstration builds without soldered leads

with circuit diagram printed for demonstration

and 400 ppm

Brass Slotted Mass Set with Hanger, 4 x 50g (250g Total) Lab Supplies_Scoops & Spatulas Entry-level two-part human skull modelFour 50 gram brass slotted masses paired with a 50 gram hanger, totaling 250 grams for suspension from pulleys, springs, and balance arms during physics force and pressure experiments.