3-in-1 TDS EC Temperature Tester with Large LCD Screen for Drinking Water Quality, Hydroponics, and Aquariums

Regarding safety: The rubber washers and plastic support plates are designed for ease of use, safety, and convenience. This car accessory is also lightweight and compact for easy storage in your room or car.

Easy to use: The car accessory is small, lightweight, and compact, so it can be easily stored in your room or car. Simple and easy to install and use.

Complete set: Our roof box kit includes 4 stainless steel U-bolts, 4 rubber washers, 4 plastic support plates, 8 locking nuts, and 2 fabric straps.