20 Pcs DC 3 V 3500 RPM Pager Cell Phone Micro Vibration Motor 4 mm x 8 mm

The motor was great for 2 of my activities so far in our summer camp. The robotic activities were fun and educational for our campers . The motors performed well. I would buy them again for future needs.

It works well for lower rpm vibration but seems to be heat sensitive overall, beyond wire soldering, where it quits working. As is typical, the wires are so small at 30 gauge that they break easily, this motor seems better wired than some others I've tried, though.

The motors arrived quickly and worked as expected. They had longer lead wires than shown in the photo which made them much easier to use.

Fragile wires, supper small. Will work great .. very fast, might need to set up a resistor for slowing down or a pot as. Hard as they were to get in stock on here not really worth the hassle..

We used this project to create robots in my science classroom. They worked exactly as described and created perfect robots.

They are small enough for many purpose. But it was difficult to find well fitted gear part to place small weight

Great for classroom!

The media could not be loaded.  These motors are really cute looking. They are super tiny but work really well for their intended vibration use. They would be great for little robots as they move a lot when you apply the right voltage. I hooked it up to two AA batteries and you can see in my attached video it really goes crazy. I could picture this set being used in a science class given how many you get per order (enough for all the kids with some to spare) to get kids interested in some basic robotics. Would definitely recommend these -- they are really awesome.