It is made with two sturdy roof supports that eliminate trumpet vibrations on the roughest roads
A front deflector cover provides protection against rain, road dirt, snow, bugs etc. from entering the horn trumpet, protecting the sound and your investment
The air feeder hose connection is made through the base and is not externally visible. The Giant's beautiful chrome appearance will look great on any truck, and its superior performance will provide an alerting sound for a greater distance. All needed mounting hardware system is included (Some drilling required). Instructions included. Designed to provide years of dependable service. Requires an onboard air system (recommended Wolo onboard air system is Model 840-JCW ZX260457).