They look precisely like I anticipated that them would, which is enormous... They are on the whole plastic, while this may not be an issue, as the plastic is thick, it could be if vibration is a substantial issue. I got them for purposes other than marine application, so for what they are,they will do the trick. I will state, anticipate putting dispense of wattage through these to get any genuine sound. They sound adequate, anyway the treble is somewhat deficient. Most would contend presumably bass reaction is to low, anyway I observed it to be an incredible inverse. At the point when these are driven hard, they sound only the same as any 6.5 would with real wattage, brisk reaction, punchy, with not assign of free bass. In the event that your financial plan takes into account more $$, at that point I would propose a higher end fabricate.