This is an idea horn for applications were space is limited but a loud horn is required. It is a very compa<span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span>ct twin air horn. Measures 112mm long by 154 high by 100 deep .Simple 1 bolt fitment139db<br>