The earth that cut in half for your keychain. The earth 1 dimensions are :X: 46.6 mm.Y: 55.9 mm.Z: 30.0 mm.The earth 2 dimensions are :X: 46.6 mm.Y: 55.9 mm.Z: 24.7 mm.It is ready to print. I am sure of that and check it in blender. It has :Non-Manifold :0Intersections :0zero faces and edges: 0non_flat faces :0Thin faces :0Sharp edges: 0I tested in Cura, too, and everything is good.I hope when you print It not have any problem. It would be more beautiful with colors.