I sell the Metglas ribbon type for all interested to replicate my experiments and to produce superior transformer cores. I sell in lots of 5, 10, 20, 50 or 100 meter. Minimum order is 5 meter. Ask for shipping cost for higher lots than 5 meter. Dimension is 9 cm width and 0.03 mm thick. Product is shipped via GSP UK.
Here are some products I produced for you to review.
https://youtu.be/VTIESw10qYs
https://youtu.be/VxRQCg_TDpc
https://youtu.be/AQnKtoScqWc
https://youtu.be/7LJxcM3l0BE