<https://matr.com/product/15-x-44mm-x-6core-2-pc-take-up-reel/#product>
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"These reels are molded and manufactured here in Illinois from virgin high impact polystyrene, with 10% recycled material content. These very latest designs, incorporate all important criteria, such as a generous label area, along with weight reduction versus strength considerations. Unlike many other “two piece” reel options, these snap lock reels, have a design feature that will allow for dis-assembly as well. With both 4 inch and 6 inch core diameters available, we can provide a 15 inch “reel” solution in widths from 8mm to 56mm. We are confident, once you evaluate this 2011 design, you will agree it is the best option for your production needs."
<https://matr.com/product/15-x-44mm-x-6core-2-pc-take-up-reel/>