Magnetic frames (embroidery hoops) are designed for cross-stitch enthusiasts. They are suitable for Mill Hill and similar designs. To ensure proper functionality, 10x2 mm neodymium magnets are required. The magnets fit snugly, but it is important to use glue to prevent them from falling out of their designated positions. Pay attention to the indentation at the end, which is used to separate the frames. To create a functional model, print two frames and insert the magnets, taking care to align them correctly. For better effect, you can use the following method: Take one frame, glue magnets into all the holes in any order of polarity. then mark one magnet on the already glued magnets, so that they are attracted to each other. mark the side of the magnet that is not in contact with the already glued one. this will be the side that should be glued into the second frame. Remember to orient the frame relative to the second one. the recesses for separation must match. If you have any questions, please ask, and I will answer them. Thank you very much.