Border terrier is a medium sized dog breed. Its long leg helps it to take long strides and run speedily. Is coat is short and clinging to the body, with breaks in between. Its long legs ease it to take long strides and its narrow body helps it to squeeze out easily through narrow spaces. Its eyes give the expression of alertness and agility. It is one of the most manageable and amiable dog breeds. It can never sit ideal and will often be seen keeping itself busy either playing around or digging the ground. It is extremely friendly and affectionate. They have the habit of barking. It has a rapport of being good with dogs and other cats. An extremely loving companion, who loves being around children.