The shipment will be arranged in 1-3 working days( not including customized product), and takes about another 3-9 working days to reach you.

• Pendulum Resonance Demonstrator Physics Experiment Equipment Pendulum Ball Secondary Presentation Aids Teaching InstrumentM-1198
• Color: As the picture show
• Feature:physics Teaching Instrument

Pendulum Resonance Demonstrator Physics Experiment Equipment Pendulum Ball Secondary Presentation Aids Teaching InstrumentM-1198WDQY