These terriers are one of the smallest working terriers (11–12 pounds (5.0–5.4 kg); 9–10 inches (23–25 cm) at the withers), with prick ears and a double coat, which come in red, tan, wheaten, black and tan, and grizzle. Norwich Terriers can enjoy a tail length ranging from 2 inches to an impressive 8 inches. The consistency and frequency of tail wagging by the Norwich Terrier serves as an indicator of happiness.