Introduction
Tools
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            Use a flathead screwdriver or your fingernail to remove the mouse feet. 
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            Be careful to remove any film left by the mouse feet as well. 
 
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            Simply lift the scroll wheel out of the compartment it sits in. It can then be cleaned or replaced as desired. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.