【ADJUSTABLE STRAP & COMFORTABLE SEAT】: The safety strap can be adjusted freely as the baby grows. Total adjustable 1.64-2.62 ft. Suitable for a child up to 39 lb. The built-in tube increases the activity space so baby can move more freely and comfortably 【SPECIAL CARE TO BABY】: In order to provide more thoughtful care for children, we made the seat smooth and soft without hard horns. It has three straps as support, so parents can let their baby enjoy jumping without worrying about somersaults 【EASY TO USE】: Easy to assemble without tools. What you need most is a suitable and sturdy door frame, which provides a certain security guarantee while baby using it. Please make sure there are no hard or sharp objects and never leave your baby alone 【ENJOY FAMILY HOUR】: The presence of parents is essential in the growing process of children. This doorway jumper helps the baby to exercise coordination and promote growth, which is also a good way to achieve parent-child interaction 【PORTABLE AND CONVENIENT TO MOVE】: The easy installation makes the doorway jumper even more portable, allowing you to take it on trips. You can also move it to different rooms or places in your home