Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Bungee Pupee3-Feet X-Large Leash, Pink/Black
Product description: For that really strong dog, up to 165-pounds. 3-feet lengths stretch to 5-feet. Great for your Large to X-Large Dog such as a German Shepherd, Dalmatian, Labrador, Weimaraner, Bloodhounds, etc. The Bun-Gee Pup-EE leash works like a shock absorber, protecting you and your dog from any sudden moves. As you encounter your dogs pull, the Bun-Gee Pup-EE leash stretches and the resistance your pet experiences teaches them not to tug anymore, helping you to train your dog. Made from durable, fabric-covered shock cord, the leash extends in a fashion that make your walks fun. Even if your dog doesn't play tug-a-war, it still looks terrific and functions perfectly.
Product feature: Called a "1st Step Training Tool" by many dog trainers, Absorbs the shock of any sudden moves, The resistance deters dogs from pulling, Best used for dogs over 65 up to 165-pounds, Stretches to 5-feet
Product price: $26.99
Product brand: Bungee Pupee
Target attributes: Length
Answer: attribute: length
value: None
source: None