What does SBT mean?

Here at Colossal Kitty Savannahs all our babies sold are SBT, we do not produce any A, B or C's.

SBT (Stud book tradition) means that parents, grandparents, and great-grandparents are all Savannahs. An SBT is bred down from the Serval but it is at least 4 Generations from  the serval. TICA will only allow SBT to show in the rings.