I ordered this for a band that had just purchased an LED backdrop and suggested they would do well to get a couple of extra blackout drapes to go with it.
Browsed a few places but all I found in the price range was cheap quality and lightweight cloth. Found these on Thomann and must say the quality is excellent, almost a good a old theatre wool serge.
The price is excellent and as they are pre cut and hemmed with eyelets makes hanging them very easy. Being fire retardent is also very important for stage use.
Had these for approx 2 years now and have lasted very well with only a quick brush down required to clean.
One advisory i will offer is that these, just like wool drapes are fairly heavy so ensure your stands can cope.