Harmless and durable: Plastic steel is better and more durable than ABS plastic. Compared with metal, plastic steel can well insulate the internal and external temperatures, giving the baby safer protection. Multi-purpose use: Keep the seat belt in the correct position on the child's body while maintaining the appropriate tension of the child seat; prevent the seat belt from moving to the child's face and neck, suitable for school bags, dining tables, chairs,strollers, etc. Useful and easy to install: The seat belt can be easily clipped into the sides and can be installed without removal. The latch is located on the side instead of the center design to help prevent active babies from accidentally unhooking the clip during travel and ensure their safety. Necessity of seat chest buckle: A properly placed chest buckle can help protect your child by evenly distributing the impact force to the strongest upper part of the body in the event of an impact. Very practical: This is a good way to spend a small amount of money to prevent your little baby from getting out of the seat belt when turning or braking suddenly, and keep your big baby's arms from pressing on the seat belt.