Upgrade Design: The fixed part of the seat belt fixed device has been improved. The upgraded seat belt fixed device does not need to be heated, which can be firmly installed. The traditional seat belt fixed device must be heated before it can be used, and the installation process is more complicated. Package Includes: There are 4 x seat belt fixers in the package, which is enough to meet the needs of ordinary four seats cars. If you need more seat belt fixers, you can increase the number of purchases. Waterproof Material: The seat belt fixed device is made of high-quality ABS material. This material is wear-resistant and is not easy to deform, which can better meet the needs of fixed seat belts. Compared with the seat belt fixers of other materials, plastic-based seat belt fixers are safer and longer. Widely Used: Seat belt fixed device is suitable for various types of vehicles, such as cars, trucks, off-road vehicles, etc. No need to worry about the size of the seat belt fixed. Simple Installation: The seat belt fixed device includes two parts. You only need to place the seat belt fixers fixed in the appropriate position of the seat belt, and the fixing can be completed by directly squeezing it.