For all the boys and girls who love space - I give you the moon.
The plastic ones don't have stuts, you can check this in the 360° view of your chosen material.
earring diameter: 19mm / 0.75 inch
stuts diameter: 0.8mm / 0.03 inch
stuts length: 9mm / 0.35 inch
If you like different materials or sizes I try to make it happen ;).