Our CNC Aluminum Prop Savers fit four different motor shaft sizes, 2.3mm, 3mm, 3.2mm, and 4mm. Unlike other prop savers, which can some times be hard to find,
ours come with stainless steel socket head allen screws. These will not strip nearly as easy as the typical cheap phillips screws that come with others. They also come with
two prop saver bands, and we sell seperate packs of four in case you need more.
For those who aren't familiar with prop savers for electric motors- the whole idea is for the prop to have some "give" in the event of an impact to prevent it from breaking.
You simply tighten the screws to the motor shaft with the "nipple" facing out. Next slide the prop on. Then
take one of the O-Rings and stretch it from one screw, over the center of the prop, and around the other screw.