There is review on youtube, they do not fitHi,
I have them and it does not put too much pressure on motor, but even if it fit right, i'm a little worried about the proppeler blades that are really soft. I would not use them for a too long storage !
I do not have the combo case, i suspect it should fit.
Fdrone Propellers Paddle Blade Holder Stabilizer Protector Compatible with DJI Mavic Mini Drone White Amazon.com: Fdrone Propellers Paddle Blade Holder Stabilizer Protector Compatible with DJI Mavic Mini Drone White: Clothing