They burn, are easy to install and just as strong and well constructed as the original bags.
I am very happy with these vacuum bags. Jackpot when I discovered them on Amazon. Delivery fast free shipping, you can buy a pack of 11, not just 2 or 3 bags. thanks amazon another great purchase.
Pros
Fits Hoover Power Drive Racks Hoover U6317-930 and U5134-900