Description If you are looking for a card holder, then your research is over here. That's because our product can meet your need. Adopted of reliable material, this product is practical and durable for long time use, which is not easy to get deformed and bring you much convenience. Features -Color:Blue -Material:Plastic -Size:18.00X11.00X3.00cm/7.07X4.32X1.18in - Multi-functional: Can be used for monitoring services on buses, and other transportation vehicles. - Convenient and practical: Designed with a support frame, easy to install and remove. - Efficient supervision: The driver service supervision card can effectively monitor the behavior and service quality of drivers. - Safety guarantee: The use of supervision cards can improve the level of traffic safety and ensure the safety of passengers. - Made of plastic materials, durable and reliable, which can use a long time. Multi-functional: Can be used for monitoring services on buses, and other transportation vehicles Convenient and practical: Designed with a support frame, easy to install and remove Efficient supervision: The driver service supervision card can effectively monitor the behavior and service quality of drivers Safety guarantee: The use of supervision cards can improve the level of traffic safety and ensure the safety of passengers Made of plastic materials, durable and reliable, which can use a long time