All of these are DMC embroidery threads. There are 30 skeins in total (including 4 bonus skeins). I received these after they were stored at home for many years. They are supposedly new and unused, but some may have fraying or fading. Please check the images for any fraying or other issues that caught my attention. I don't think there are any duplicate numbers, but please refer to the images. Recommended for those who want to try various colors. These have been stored at home for a long time, so please check carefully before purchasing. ⭐️ Other colors will be listed soon. 519: Some color fading 580, 714, 3828: Usable, but offered as a bonus due to slight kinks in the thread.