Mug-It! Turn most bottles into a mug. Easily add a handle to your bottle, tumbler, or pint with the quick-attached silicone bands and a sturdy-grip handle. Universally fits narrow and wide bottles. Fully adjustable bands create a comfortable and secure grip. Perfect addition to your Hydroflask, Yeti, or Rtic bottles. Cut the silicone band down to size to your favorite bottle -OR- use the included tethers to secure the excess band.