The Russian Tsvetnaya Bolonka, often simply referred to as the Bolonka, is a small companion dog breed originating from Russia, typically weighing between 4 to 10 pounds (1.8 to 4.5 kilograms) and standing around 8 to 11 inches (20 to 28 centimeters) tall at the shoulder. Bolonkas have a hypoallergenic coat that sheds minimally.