Beginners should start with short Leash Extension to gain experience with your flight area. It is easy to misgauge distances and prevent your Parrot from landing on a tree limb or roof that is out of reach. Many Parrots that are learning to fly are able to fly up but afraid to fly down from high perches, thus a shorter length is better. Leash Extensions are made from high quality nylon and rubber shock cords that expand as much as 100% depending upon the health and strength of your friend. Do not connect multiple extensions together. The connection can become snagged on grass making it difficult for a bird to maintain flight. Mow grass short to eliminate as much drag as possible when flying.