These are quite old, as they were kept by my mother who did traditional Japanese sewing during the Showa era. They weigh about 120g for the four spools. They were stored properly. Some were wound on thread spools and were usable, so I believe these are probably still usable. The color is natural/off-white. I'd like to offer them to someone who can use them. I hope you will consider this after understanding the above. Thank you very much.