There are "fancier" models of this mirror but for an affordable price, it's easy to attach the the windshield of a boat.  I use my mirror to help to watch skiers, as well a see what is going on behind me in general.  If money was no object, you may want to consider a "higher-end" model with suction cup mount etc.  I opted for this because my boat's windows are tinted and I didn't want to stick a suction cup the window tint.  I've hit this with my head a few times and it has not broken.  The build quality is okay but I doubt that it could withstand extended abuse.  I'm happy with my purchase and the price paid for this mirror.  It helps to makes my boating experience more safe on a budget.