Half a croissant, on a plate, with a sign in front of it saying '50c'
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Rolling Bell Cane Tip

For a white cane
 
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This is a rolling bell at the end of a white cane that is used by people who are blind or visually impaired for navigation. The bell would give an audio announcement that the navigator is approaching. Rolling one direction the wheel would trip a series of hammer strikes against a bell and rolling the opposite direction the bell would be muted or the hammer would not trip -- so that the user could choose to have the mechanical alert signal or not depending on the way they turned the cane.
JesusHChrist, Apr 13 2016

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       surely you mean   

       // This is s rolling bell st the end of s white csne thst is used by people who sre blind or visuslly impsired for nsvigstion. The bell would give sn sudio snnouncement thst the nsvigstor is spprosching. //
notexactly, Apr 13 2016
  

       That would be ailly.
MaxwellBuchanan, Apr 13 2016
  
      
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