Improved safety buckle This safety belt buckle can be installed on existing seat belt buckles for a more secure connection. Ideal for traveling with children, ensuring peace of mind regarding your child's safety in the back seat. [Durable material] The car seat buckle is made of high-quality, thick, durable plastic material and can be used for a long time. Easy to use A set includes two seat belt caps and two keys. This allows both rear seats to be equipped. They can be easily removed and installed using the included key. 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 enhance safety during driving. Please note Please ensure the size is suitable before purchasing. Seat belt buckles fit most vehicles but cannot be used on the front passenger seat. This is for rear seat use only. Note: All data is measured manually; please allow 1–3 cm error due to lighting and display differences. There may be color variations; please refer to the actual item received.