Hello :) After receiving the file, all technical changes will be made free of charge according to the workshop and the request of the company...Our heart ring , with a soft design and in sync with the style and fashion trend is ready to receive the file. All dimensions of the design and elegance of the ring are well shown in the photos and it will reveal its boundless beauty in the hand. On the occasion of Valentine's Day, our heart ring has been presented at the lowest cost so that I can share in the happiness of this beautiful day. After receiving the file, if needed, the penalty changes according to your opinion were applied for free.If you want to change or design a similar ring, you can send me an email so that your needs will be met in the shortest possible time.Email : mohadesamirhasani@yahoo.comThe ring can be downloaded in STL and 3dm files, and you can change the design in the 3dm file.