10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies dimensioned to fit a pair

dimensioned to fit a pair of 75mm (3-inch) bar magnets and the keeper that bridges them while in storage

holding volume constant across specimens for isolated density comparisons

Brass slotted mass set combining eight 25 gram masses with a 25 gram hanger

this pipette-type hydrometer draws electrolyte into a glass body with a colored-zone float for direct reading

Wooden baseboard with millimeter scale

10-100kΩ Single Dial Resistance Box Lab Supplies_Filtering Supplies dimensioned to fit a pairHigher impedance single decade resistance box stepping from 10k to 100k ohms in 10k ohm increments, providing the standard reference decade for op amp input and analog signal path circuit work.