First, the method of use:

1. Open the bag, put the quilt or clothing and put it in.
2. Seal the bag with two-thirds of the mouth with a slide, leaving a third, opening the opening at 1/3
3. Put a few quilts or clothes on the quilt and let most of the air escape from the mouth at 1/3 (use the pump's friends to pay attention, this can save a lot of effort)
4. Hurry and pull the remaining 1/3
5. Use the slide to slide back and forth at the seal to ensure the bag