12-Piece Solid Brass Slotted Mass Set Subcategory_Lab Jacks designed to slot inline with

designed to slot inline with other PH1029-series modules to build a complete student-wired circuit on the lab bench

demonstrating ligament engagement and meniscus function for sports-medicine teaching

Plastic-cased introductory electronics kit with 10 lamp holders+bulbs

used to extend the activity-series comparison and to introduce the chemistry of the lead-acid battery

12-Piece Solid Brass Slotted Mass Set Subcategory_Lab Jacks designed to slot inline withTwelve piece brass slotted mass set spanning 1 to 500 grams, stackable on a slotted hanger for fine grained force and mechanical advantage investigations with a 1110 gram total capacity.