Questions about Black & Decker Vacuum storage bag

You can use a standard hoover to remove the air from vacuum bags. Here's how to do it: 1. Place the hoover hose over the bag valve. 2. Activate the hoover to extract the air until the bag compresses around the clothes. 3. Close the bag quickly and firmly once the air has been extracted to prevent air from seeping back in.

No, there are 3 pieces of size S 40 x 60 cm.