Q.product name (and where to buy)
I found this green wire thing around my neighbor’s plant. I have never seen it at the shops, like Home Depot or some local garden shops. What do you call it and where can you find it?

Wire plant supports are very handy in the garden!
They are quite easy to locate at local garden centers and greenhouses.
They come in many different sizes and I have seen numerous designs.
Google 'wire plant supports' and you will find lots of sources that you can also order direct.