"Shiv Dial Sud & Sons"
Decade Resistance Box
This box changes resistances in a laboratory circuit.
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Extension Rings
Made of heavy metal with side rod for insertion in clamp holders.
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Steel Horseshoe Magnet
Classically styled chrome steel magnets are large, easy to work with and affordably priced.
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Ten Specimen Density Set
This set features a handy, economical selection of density cubes.
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Prisms
Clear, Short Prisms for Index of Refraction and Dispersion
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Clamp Pulley, Adjustable
This versatile pulley can be used on table edges or at different heights.
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Extension Condenser Clamps with Swivel Jaws
This clamp features vinyl-coated swivel jaws made from stamped steel.
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D.T. Buddy Delivery Tube Hand Saver
The perfect hand-saving tool for inserting glass tubing into stoppers!
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Supertek® Aluminum Spring Scales
Aluminum spring scales, built to last in any lab.
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Concave and Convex Mirrors, on Base
To explore light reflection and refraction properties of concave and convex mirrors, laws of reflection, image formation, the effects of surface curvature on reflection, spherical aberration, etc. Each mirror is securely held on a plastic base. The diameter of each mirror is approximately 95mm.
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Alnico Bar Magnets
Alnico bar magnets are useful for classroom or lab experiments.




