Plastic
💡Resistor Box: Simple design: The resistance box is simple in structure, easy to use, and simple in design, allowing you to use it with confidence. Our variable resistance box is light and reliable, portable and practical, suitable for school use.
💡Variable Box 0-9999 Ohm: Variable Resistance Box Great instrument for learning physical and electrical experiments, easy to operate.
💡Adjustable Resistance Box: a selection of professional variable resistance box, which has good stability and high accuracy.
💡Experiment Resistor Substitution Box: Decade Resistor Experimental Equipment Made plastic material, safe and durable, which could be for very time.
💡Resistance Box Electrical: Application: suitable for school teaching, physics classroom teaching, physics experiments, research and other uses.

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We Do Not Ship to PO/APO Boxes, HI or Alaska
We Do Not Ship Outside of the Continental US
All items ship within 24-72 hours of Payment
For large items that require Freight shipping a valid phone number is required to call and schedule your delivery

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