The easiest way with the bets looking results to apply
Shrink Capsules is with the Shrink Tool/Bag Decapper Combo.
Just slip the shrink capsule on the bottle, place the shrink tool
over the shrink capsule, and holding the tool against the bottle,
dip in boiling water. It takes no more than 3 seconds to shrink the
capsule with perfect results every time. As a bonus, there is a bag
decapper on the handle end of the tool which makes taking the cap off
wine bags a breeze.