* Size: 140*298+15mm 

* Open end design 

* 100g wood free paper，80g-150g available 

* Perforation line at 4.5cm from the seal

* Ideal to contain both finished and old lenses, warranty card, or user manual

* Prescription of the lenses can be printed on the back of the envelope, facilitating communication to end user at retailer 

* 100% recyclable paper  

* Customizable print design on envelope for marketing message to enhance brand image

* Perforation line- convenient & time saving for end user