NewBeeDrone Motor Base Cover is made by EVA foam with 3M tape. It provides protection for the screw and also prevents dust trap in the bottom of the motor.
package includes 2x foam sheet total 20Pics motor covers
These little guys give you a nice suttle smooth landing! Great Idea NBD!
I love these motor base covers -- they keep the motor screws from scratching delicate surfaces around the house. They probably offer some cushioning protection to the frame, as well.