Safety belt buckle connector improves stability by installing onto existing seat belt buckles. Ideal for traveling with children, providing added security for child passengers in the back seat. [Sturdy Material] The car seat buckle is made of high-quality, thick, durable plastic material for long-term use. [Easy to Use] Each set includes two seat belt caps and two keys, allowing installation on both rear seats. Components can be easily removed and installed using the included key. [Function] This seat belt buckle adapter is designed to prevent children from unbuckling their seat belts secretly while driving. It enhances safety for child car seats during vehicle operation. [Note] Please ensure compatibility before purchasing. Seat belt buckles fit most vehicles but are not suitable for front passenger seats. Use only on rear seats. [Reminder] All measurements are manually taken. Please allow 1–3 cm variation due to lighting and display differences. Color may vary slightly from the actual product received.