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

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

Non-conductive

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

Pairs a 90 by 45mm semicircular face with 15mm thickness on a glass prism block

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.