Well ... it's a kind of floral paper, or cake pad paper. It is a common basic decorative paper.

Prices range from 0.05 yuan/piece. There are 20 -250 pieces/piece. The diameter can also be selected, generally from 10 cm to 20 cm/.

I mainly don't know where you are from, so it's hard to say where to buy it. So I suggest you buy it online, which is convenient and cheap.

I hope I can help you and wish you a happy new year!