Material-The chest clip lock is made of ABS automotive plastic, which is safe and environmentally friendly, reliable in quality, good mechanical strength, excellent toughness and wear resistance. Safety-Put the seat belt clip in the correct position on the child to prevent the seat belt from moving to other parts of the child. It has the function of fixing and tightening the seat belt and provides a better driving environment for children. Dimension-The car seat belt buckle size is 10.7/4, 21 inches, and the suitable seat belt width is 3.8/1.5 inches. Commonly used in most car seats and strollers. Easy to Use- The car seat chest belt clip needs to unfasten the car seat belt to pass it through the buckle, then press the button to remove and attach it easily, and the operation is simple. Multifunction-The baby seat belt clip can be used in car seats and strollers to prevent the seat belt from falling off because the baby is too small, and it can also prevent the seat belt from moving towards the child's face or neck.