I have so many backdrops to choose from for your in studio sessions; These backdrops are used for ages 6 months and up. I don't typically recommend using backdrops like these for under a sitting age because babies are so small and they are not capable of sitting yet.
HOliday / Everyday Mini Backdrops
These backdrops range in size from 8x0 and up. These can be used for holiday sessions or everyday sessions. I don't typically recommend them for under 2 years old because babies look very small on them. The long backdrops are called a sweep, so they are a two in one backdrop and floor, and look seamless when photographed.
Sports