High-quality materials: The seat belt is made of automobile seat belt material, which is strong and wear-resistant, and has a comfortable texture. The anti-lost rope is made of high-strength 304 stainless steel wire, 1.5 meters (4.9 feet) long, and three layers of protective materials are integrally formed. There will be a luminous effect at night, which is safer for the human body. Upgrade design: Upgrade the whistle mode and key lock mode. The key is mainly on the wrist of the parent to prevent the baby from opening it by himself or others. There is a whistle on the baby's wrist, so the bad guys are not given a chance. The watch strap and wrist strap are equipped with a buckle. Freely adjustable: The shoulder straps can be adjusted freely and can be adjusted according to the needs of the child, which greatly relieves the pressure on the shoulders. The shoulders and waist are equipped with soft foam pads to better protect the baby's skin. Easy to use: The two different modes can be switched at will, the strap mode is safe and stable, and the bracelet mode is free and light, allowing babies to have more fun. It is easy to disassemble, no tools are needed, just use the built-in key to unlock, easy to carry and easy to store. Suggestion: Keep a close distance with your baby after wearing, do not pull it hard to avoid falling, and do not fasten the wrist strap too tightly to avoid discomfort.