thanks..gilles method is perfect for my work
thanks to all again

yes it worked perfectly
thanks!

edit:there's an error

this is what i got
how can i fix it?

phone.skp

sorry i forgot to add this other image
the back should be like that..

hi all i'm Costantino and i'm new here
i'm new to sketchup and i need urgent help
i need round edges like the picture attached how can i do that?
thanks