The ads you see are from cookies that are personal to you. You see ads based on your interests.
Technically, this type of tracking isn’t tracking you as an individual; it’s just a side effect of the places your computer has visited. Any computer that happens to view product X will likely see ads for X as they visit other sites.
For example this ad ( THAT I CAN SEE AND YOU CAN'T) is one of a rug I have coveted for our lanai;
Nourison Prismatic PRS-16 Rugs | Rugs Direct