It depends partly on where in the world you are and what language you use. I just tried that query in English and an answer callout was the first result, specif

It depends partly on where in the world you are and what language you use. I just tried that query in English and an answer callout was the first result, specifically highlighted. Then there is a "people ask" refiner widget, some videos in which the first is titled "How to use a massage ball (tutorial)" and then a WikiHow page. No ads. I tried again in the local language and now I see some product ad results for buying a massage ball, but then it's back to the video results and sports blogs showing how to use them. That seems OK. Probably most people searching for massage balls do want to buy one or are very likely to do so soon. I dunno, seems like they're both pretty good pages of results.