EPIRBs are essential for anyone going offshore, but you have to be able to reach them in the time of need. So instead of permanently mounting the EPIRB bracket to your fiberglass, mount it to a SeaSucker so you can take it off when you don’t need it, or move it to where you can quickly reach it. Compatible with all ACR CAT-2 models. Mounting surface is laser etched to visually show you where/how to install, and pre-drilled for your convenience. EPIRB, EPIRB bracket and mounting hardware NOT included. Dimensions: 4"x2.75", 2.5" deep.