n. one of a number of small ball-like metal bells attached to a sled or to the harness of the animal pulling it.
1811  But little snow has fallen; and with the exception of a very few days, the sound of sleigh bells has not been heard.
1851  But, hark! there goes the merry sleigh bells, reminding us that we are in Canada.
1955  I learned in this beautiful neighbourhood to appreciate the charms of a bright Canadian winter day and to take delight in the cheerful music of your sleigh-bells.