Finding a product to sell – Just copy a successful store?

Hey guys,

Is this a good product research strategy?

1. See FB ad for Leather Dog Collar
2. FB ad has authentic comments, likes, and I see it's been running for last 8 months.
3. Look at their social media, it's a real company and they're selling.
4. I find the same dog collar on Aliexpress with drop shipping available.
5. I like the margins (70% or over)
6. I design my own website, brand it, run ads for it
7. Profit?