These Field Collected Beauties Are Approximately 2-2.5 Inches In Shell Length. Awesome Tempered Tortoises Making Them Great Pets For Any Level Of Experience Owner. With Their Average Largest Size Being 9 Inches In Length These Are Perfect For Any Smaller Houses. Baby Russian Tortoise for sale is one of the most popular tortoises kept as a pet. They are very active and responsive to their owners, and they make great first reptiles when cared for properly.