TOYANDONA Physical Resistance Box Ohm for Educational Use Variable Resistor Substitution Box for Physics Experiments Lightweight Portable Instrument for Electrical Measurements

Package List 1 x Variable Resistance Box Characteristics -Material: Plastic Resistor Substitution Box. -Size: About 1400X1000X500cm/550X393X197in Physical Variable Resistance Box. -Color: Black Experiment Variable Resistance Box. - The resistance is stable and reliable when the resistance box is properly used to rotate each group of knobs Experiment Resistance Box. - Made by plastic material, and , which could be used for very long time. Physical Resistance Box - The variable resistance box teaching instrument is suitable and wonderful for school, laboratory use Physical Variable Box 0-9999 Ohm. - Great instrument for learning physical and electrical experiments, easy to operate Resistance Box. - It is a selection of professional variable resistance box, which has good stability and high accuracy Physical Tool.Goods DescriptionExperiment Tool The teaching variable resistance box is simple and delicate, excellent and reliable, carefully crafted.Physical Tool This variable resistance box is very easy and simple to operate, giving you huge convenience. The variable resistance box can be used for physics electricity experiment

• Experiment tool:the variable resistance box teaching instrument is suitable and wonderful for school, laboratory use,Physical Tool
• Physical tool:it is lightweight, easy and convenient to carry and store when not in use without any effort,Experiment Tool
• The resistance is stable and reliable when the resistance box is properly used to rotate each group of knobs.
• Simple in structure, easy to use, simple appearance design, you can use it with confidence.
• Plastic material, flexibility and excellent durability, easy to use, for .