RIDDLE MANIA

To play each RIDDLE MANIA, please buy an omelette or jelly from Ladpride's shop.   Then please email the riddle number and answer to Ladpride! THANKS!
             RIDDLE 19:
              
(SEPT:16th - 23rd)

I bind it and it walks.  I loose it and it stops.  What am I?
LADPRIDE'S SHOP
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