it doesnt say T Ball on it but from what I understand T Ball gloves can start at 9 inches and range up from the size of the child and age of the child. I would say this would be fine for T Ball or early little league or something like that
from what I understand, it could be used for T Ball since it is already "RTP" or Ready To play and doenst need any breaking in....they usually start around 9 inches and go up so this would be ok for a Tee Baller or a youth