Bubble Wrap or air bubble packing is a transparent plastic packaging material that is mainly used to pack fragile or easily breakable items.
The bubbles have regularly spaced protruding air-filled hemispheres which function as the cushioning agent for sensitive and easily breakable objects.
Bubble wrap is made from tiny beads of resin with different properties. The resin is then combined and melted to form a thin film. Next, the film is flattened to the desired thickness and fed through rollers. These rollers have small holes which vacuum air onto the film to form the air bubbles.