RAM Part RAM-MAG-1U : Pure innovation at it's best. As portable devices have become smaller, so have the view screens. With the new RAM Big Screen Magnifier, you won't have to lean closer or squint to see where you're at or where you're going. The magnifier is 2 inch by 4 inch with 2x zoom. The difference this device makes in the overall functionality of the GPS or PDA is remarkable. The unit comes with a diamond adaptor, so it works with all RAM cradles and a ratcheting feature with flex rod for perfect positioning. This RAM Big Screen Magnifier is a must have for anyone who loves their GPS or PDA but wishes the screen was a little larger.