Teacup dogs and teacup poodles are senior pet dogs. Miniature dogs are very small now, and adult dogs are generally 20 to 25 cm long and can be placed in your arms. There is a smaller poodle with a teacup called Tinyteacuppoodle, commonly known as "Pocket Poodle". The standard is less than 7 inches and weighs less than 3 pounds.