The Joolz Aer is a stylish and attractive product with a convenient, high-quality design. It is a compact stroller that is perfect for traveling. Unfolding and folding it is a breeze. Pressing a button on the buggys handlebar unfolds and locks into place almost automatically, no shaking or adjusting needed. To close it, simply press the same button. The Aer is designed for children between 6 months and 50 pounds.