You use a Beau Bottle wrap by sliding the sleeve over a Veuve Clicquot 750ml bottle and applying heat with a hairdryer or heat gun to shrink it to a smooth fit. 
Step-by-step instructions
Prep the bottle: Ensure the bottle is clean and at room temperature or chilled.
Slide on the wrap: Open the sleeve and slip it over the bottle. Align the wrap's clear window with the bottle's label, keeping the Beau Bottles logo on the back.
Apply heat: Start by applying heat with a hairdryer on high or a heat gun on medium to the bottom of the bottle. Work slowly and rotate the bottle in a spiral motion.
Work your way up: Continue to move the heat up toward the neck of the bottle. Hold the wrap at the top with one hand to prevent wrinkles as it shrinks.
Smooth the finish: Focus on any wrinkled areas, and if needed, you can pour boiling water over the bottle in a sink for a perfectly smooth finish. 
Tips for best results
Use the right wrap: Make sure you have the correct Beau Bottle wrap for your 
Veuve Clicquot 750ml bottle
, as they are custom-designed for a perfect fit.
Check fitment: Consult the fitment guide on the product page to ensure you're using the right size and style for your bottle.
Don't rush: Applying heat slowly will help achieve the smoothest results.
Add a bow: For an extra touch, tie a decorative ribbon or bow around the neck of the bottle.