As with assonance, consonance is the repetition of sounds within the same phrase or sentence, the difference being that assonance uses vowel sounds and consonance consonant sounds. Notice the repetition of w and wh sounds in this example from one of my poems, "Do You See These Buildings?":
They wondered whether this was what
they signed up for, if all the awful waiting
through the waste was worth their while.
In this next example, the r sound repeats:
The rabbits running across garden wreaked destruction, tearing through the mesh barrier and devouring the carrots, parsnip, and radish.
Consonance brings simple pleasures to the reading experience.