Feature: 1. This is a car multi‑function maintenance kit, which contains tools such as oil quality comparator/led work light/brake oil test pen/antifreeze freezing point meter/digital tire pattern ruler/brake pad thickness gauge. 2. Equipped with work light USB charging cable, sealing rubber ring, cleaning cloth, complete kit, equipped with storage box with aluminum alloy shell, convenient and practical. 3. The oil quality comparator can be used to compare and analyze the oil quality of your engine crankcase, allowing you to understand the oil condition of your car, and to replace or maintain it in time. 4. There is a small strong magnet on the back of the LED work light, can be attached to the metal or car hood, convenient for you to use at night or when the car is powered off. Also can be used to illuminate dark corners to help you check car breakdowns. 5. Includes a brake fluid test pen. You can take out the test pen to test the condition of your brake fluid, and replace and maintain it in time. There is also an antifreeze freezing point meter to know the antifreeze of your car in time. 6. This maintenance kit is also delivered with a digital tire pattern ruler and brake pad thickness gauge, which can understand the wear status of tires and brake pads in time, and maintain all parts of your car in time. 7. This is a very complete car maintenance kit. You can carry out car maintenance operations at home, or you can use it as a spare maintenance tool for the auto repair and maintenance shop. Specification: Item Type: Auto Maintenance Kit Material: ABS + Aluminium Alloy Application: Personal or Auto Repair Shop Spare The Kit Includes: Oil Quality Comparator/Led Work Light/Brake Oil Test/Antifreeze Freezing Point Meter/Digital Tire Pattern Ruler/Brake Pad Thickness Gauge Work Lamp Battery: Built-in Polymer Lithium Battery, 250mAh (Included) Antifreeze Test Pen Battery: Button Battery, CR2025 X 3, 120mAh (Included) Digital Display Tire Pattern Battery: Button Battery, CR2025 X 1, 120mAh (Included) How to Use: Car Accessories, Directly Use. Package List: 1 x Oil Quality Comparator1 x LED Work Light1 x Brake Fluid Test Pen1 x Antifreeze Freezing Point Meter1 x Dropper1 x Brake Pad Thickness Gauge1 x Digital Tire Pattern Ruler1 x Small Screwdriver1 x USB Charging Cable for Work Light3 x Spare Sealing Rubber Tube1 x Transparent Tubing1 x Cleaning Wipes2 x Manual 1 x Storage Box