On December 11, 2021, a video captured the intricate work of a factory employee in Ningbo, a coastal city in eastern China. The footage showcased a machine featuring two large, smooth metal rollers used to press and mix silicone materials.

The worker, wearing clear plastic gloves, began by placing a white silicone block between the rollers. Later, red silicone was added, gradually blending with the white material as the rollers turned. The worker carefully adjusted the materials by hand, ensuring even compression and folding.

Over time, the colors merged into a lighter shade of red, forming a smooth, uniform silicone sheet. The seamless transformation was mesmerizing and oddly satisfying to watch.