20mm Lead Density Cube with Hook Safety Supplies_Eye Protection Semi-stiff nylon bristle brush on

Semi-stiff nylon bristle brush on a twisted stainless steel wire handle

5-inch stainless steel connecting rod grips apparatus up to 3

High-tension power supply driving spectrum and discharge tubes in atomic spectra and gas discharge demonstrations for advanced physics classrooms

running on mains or battery with a 15 by 17 cm pan for routine weighing in classrooms and stockrooms

this six-metal density cube set of brass

20mm Lead Density Cube with Hook Safety Supplies_Eye Protection Semi-stiff nylon bristle brush onSuspends a 20mm solid lead cube from a spring scale for water immersion density measurement, the heaviest specimen in the series at 11. 3 g cm for extreme density reference.