From the Manufacturer:
Create romantic designs with our Paper Mart brand Premium Colored Nylon Tulle. This tulle is light, airy and at the same time luxurious. Its high quality means that it can hold its shape and resist wrinkling which is perfect to make gorgeous tutus, costumes, dresses and wedding gowns. This tulle ships in rolls. Due to the dye process of our tulle, there may be color variations. Depending on how tight these rolls are wound, these can vary in diameter. All of our tulle colors are guaranteed to be the length (25 or 100 yds) as labeled. Made of 100% Nylon.