Replacement Pulley for Magnetic Force Board Health & Genetics_Health & Genetics Models the next step up from

the next step up from the 1-ohm reference for low-resistance series-circuit and divider work

7 oz with a threaded removable brass hook

this premium calorimeter delivers accurate specific-heat and heat-of-reaction measurements

US-milled iron filings at 40-60 mesh in a 250-gram translucent screw-cap bottle

Heavy-base metal stand with a pillar

Replacement Pulley for Magnetic Force Board Health & Genetics_Health & Genetics Models the next step up fromMagnetic base pulley with a 50mm ball bearing plastic wheel, snapping onto magnetic whiteboards or force boards for quick repositioning during classroom mechanics demonstrations.