So   Um then the case material itself , so it can be uh uh either plastic or latex , uh rubber , wood , or titanium. And th for each of them you have uh cases where  for example titanium , you can't use it for  if you if we're choosing a double curved case , we can't choose titanium. And if we are choosing um solar cells then we can't choose latex for the case material , so we just have to take that into account. But if we're choosing just the flat case then we can go for anything. And I think we discussed earlier on the R_ S_ I_ problem thing , so we could uh
So that might be an idea of using the rubber ,
Yeah.
but then it should , you know