6-Hole Premium Wooden Test Tube Rack with Pins, 9.4", for 25mm Tubes Graduations_Ungraduated Aluminum pendulum clamp with three

Aluminum pendulum clamp with three screw attachments on a die-cast head clamp fitting rods up to 16mm

Simple-form Boyle's Law apparatus pairing a graduated plastic syringe on a wooden block with a weighted piston

producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels

Two-hundred-fifty-gram push-pull balance in an acrylic tubular body

6-Hole Premium Wooden Test Tube Rack with Pins, 9.4", for 25mm Tubes Graduations_Ungraduated Aluminum pendulum clamp with threeHand crafted hardwood test tube rack with six 25 mm holes and six drying pins on a single tier, sized at 9. 4 inches long for chemistry and microbiology classroom stations.