4-Prong Cork-Lined Clamp on Stainless Steel Rod, 4.1" Max Lab Equipment and Supplies_Safety Supplies One-inch brass ball that threads

One-inch brass ball that threads onto a pendulum string as a heavier metal counterpart to aluminum or steel balls in mass-dependent periodic-motion investigations

5 inches each supports crafting projects

Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary

Wood-handled collecting net pairs a sturdy grip with fine mesh netting for classroom field trips and introductory entomology collection work

Spring-clipped metal frame on a mounting rod grips gratings

4-Prong Cork-Lined Clamp on Stainless Steel Rod, 4.1" Max Lab Equipment and Supplies_Safety Supplies One-inch brass ball that threadsCork lined four prong jaws cushion beakers, Erlenmeyer flasks, test tubes, and burettes up to 4. 1 inches, attached to a 10mm diameter 5. 5 inch stainless steel connecting rod.