Kindle Fire hd 8 grip and stand

I printed this with a .8 nozzle,(a .4 will work as well) with 2 perimeters. at a .6mm layer height.
I would use 4 perimeters with a .4 nozzle. layer heights of multiples of .2 would work best.
there are holes for 10mmx3mm magnets to hold the stand in place.