Silicon Tubing, 40", 11mm Dia x 7mm Bore Rod Material_Stainless Steel Stove-enameled metal-cased laboratory stop clock

Stove-enameled metal-cased laboratory stop clock with minute and second sweep hands

supplied on a plastic-and-metal rack with a carrying handle for classroom transport

Mid-range 60mm reading magnifier with a 15cm focal length

Wider-apex 30° x 75° x 75° glass wedge prism

equipping a class for compound-pulley and multi-rope mechanical-advantage experiments

Silicon Tubing, 40", 11mm Dia x 7mm Bore Rod Material_Stainless Steel Stove-enameled metal-cased laboratory stop clockSeamless translucent silicon tubing in a 40 inch length with 11 mm outer and 7 mm bore, non toxic and autoclavable for larger flow laboratory fluid runs.