Any tips for removing the background of white objects

[VINTX2]

Hello,

I have difficulties remving the background of images with a white object.
Most of the time, some part of the white object gets removed, too.

Do you have any tips to resolve this? I also tried rmbg-1.4, but it has the same issue on some pictures. Sometimes it works better.

Example
Original image:

Image after trying to remove the background:

Thanks!