Linseal is spread over the inside of a tyre tread area as the wheel revolves, ready to seal puncture after puncture. When the puncture occurs, the escaping air pressure forces Linseal into the hole immediately forming a strong airtight seal.inseal is the revolutionary liquid puncture preventative. Linseal is designed to remain fluid inside a pneumatic tyre or innertube. Linseal will seal a hole in the tread area of a tyre instantaneously when applied BEFORE a puncture occurs.
Short Definition: Trypophobia is the fear of groups of holes. It can also involve fears of various patterns.
If it was that dangerous im sure it would be very famous already. But it looks like the photo has been edited to include the holes. I have trypophobia, which is a fear of many small holes in something and I think that the creator just wanted to make us feel like that.