This motor is about the size of your thumb. Max 9v. Cost 15RMB per pair.
This extra strong fan can be used for many things. 8cm*8cm*2.5cm. Lite, fast and quiet. Max 12v. Costs 38RMB per pack.
This Advance Set includes: 1x 10cm Wire, 1x Battery Holder(2x AA), 2x Extra Big and Strong Motor and 1x Uni Switch. Price: 35RMB every set.
This beginners set contains a lot of components for early circuits. We recommend you to purchase this circuit even if you are not a beginner,
Battery Holder that can hold two AA batteries (3 volts).