The black plastic rails are not needed. Mine kept falling off my Apple Magic Mouse, so I eventually just left the rails off. Surprisingly, the aluminum bottom of them mouse slides fine over a cloth mouse pad and works fine. The rail-free mouse also works okay on my table; however, it makes a light scratching sound when I use it without the mouse pad.
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The black plastic rails are not needed. Mine kept falling off my Apple Magic Mouse, so I eventually just left the rails off. Surprisingly, the aluminum bottom of them mouse slides fine over a cloth mouse pad and works fine. The rail-free mouse also works okay on my table; however, it makes a light scratching sound when I use it on a hard surface without the mouse pad.
The black plastic rails are not needed. Mine kept falling off my Apple Magic Mouse, so I eventually just left the rails off. Surprisingly, the aluminum bottom of them mouse slides fine over a cloth mouse pad and works fine. The rail-free mouse also works okay on my table; however, it makes a light scratching sound when I use it without the mouse pad.