These parts are not spacers they are replacements parts and designed for quick release.
The Parts we make are simply inserts that go under the DJI props to make them a tighter fit.
No screws or adjustments needed.
When you compare the Prop Covers we make to others they are much more cohesive and silent compared to the Aluminum ones that you can purchase that use screws and have to be tightened and tend to rattle.
The Benefits of the Prop Covers we make solve 2 issues, they keep out the Dirt/Sand from entering the motors and they keep the Props on tight without any adjustments needed .
The only thing is you need to Purchase the Phantom 4 Wet Suit to get the Prop Covers as we do not sell them separately.
Phantomrain.org
Gear to fly your Phantom in the Rain and Rescue in the Water.