【Enhanced Safety】 This seat belt buckle can be installed on existing seat belt buckles for a more stable connection. Ideal for traveling with children, ensuring you don't have to worry about your child's safety in the back seat [Sturdy Material] The car seat buckle is made of high-quality plastic material, thick and durable, and can be used for a long time 【Easy to Use】 One set includes two seat belt plugs and two keys. This one can be used to equip the two rear seats. They can be easily removed and installed with a wrench. Easy to apply 【Function】 This car seat belt buckle adapter is designed to prevent children from secretly unbuckling their seat belts while driving. It is used to secure child seats and improve safety while driving. 【Please Note】Please make sure the size is suitable before purchasing. The seat belt buckles fit most vehicles but cannot be used on the front passenger seat. It only works on the back seat Note: The data are all measured manually, please allow 1-3cm