
th word Teacup when used to describe an example of an laready toy breed is an advertising ploy used by puppy farmers to make runty poorly bred and reared pups seem desirable.
The Maltese is a toy breed and you should look at the breed standard on the Kennel Club website, having read that you will see what the parents whoudl be like and what the pups will hopefuly grow closely to resemble.
A list of breed club contacts is at the bottom of the page, and they will be able to put you in touch with reputable breeders who breed with the breeds welfare in mind.