These are the original Tiny Whoop motors that Benedikt at Micro Motor Warehouse brought to the world, and that fueled the entire global phenomenon. If ya ask me, one of the most influential motors in all FPV. They're fast. Here's a video from my personal youtube that really showcases their speed.
6mm x 15mm brushed coreless motors for the Blade Inductrix and Nano QX.
Upgraded motors are a must to carry the FX798T micro FPV combo.
To get the most out of these motors I recommend you break them in by hovering for 10 minutes of flight time. Then go nuts.