Features: Lightweight and portable design: Weighing less than many alternatives, this aluminum checker is easy to store in a truck cab, tool box, or between seats. Its portability makes frequent tire checks more convenient. Dependable road safety aid: Provides truckers with a straightforward, reliable tool for maintaining tire safety. Regular use helps prevent issues caused by underinflation, contributing to safer journeys and vehicle maintenance. Specifications: Material: aluminum Color: silver Size: 18 inch Package includes: 2 x Tire thumper Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.