Mazie is a Sheltie, a wee one-year-old who was born to run, as Shelties are known to be.

Unfortunately, Mazie lives on busy street, so when outdoors, Mazie had to be tethered for her own protection.

But check this out: Chain Free Dogs surprised Mazie by fencing in her yard! Mazie now has the freedom to BE an energetic Sheltie, without the extreme limitations of a tether.

You best believe Mazie’s making up for lost time, zooming around all day at full speed till she’s worn out. Play the video! Her happiness is contagious!