Plates are usually made with the impression of the right hand, and the left foot.  As the years go by, this helps you see how much both have grown.  Of course, any combination of hands & feet are available.

Plates come in 5 sizes: Ornament- (1 imprint)  3 inches   Small - 5 1/4 inches    Medium - 6 1/4 inches   Large - 7 1/4 inches  X-Large- call for info on this special size