<div class="_help_font_site selected-art-author"> <p>Yes. Total quantity&nbsp;is no more than 4 and you did not use any voucher or promotion on your orders, you can combine them for one shipment and we can refund you part&nbsp;of shipping fee. Please inform us of your order numbers before&nbsp;the orders are shipped by sending email to <a href="mailto:service@firmoo.com">service@firmoo.com</a>&nbsp;informing us that this is a bulk order and list the order numbers on the email.<br /> <br /> <strong>Please note:&nbsp;</strong><br /> <br /> 1. If you have used any vouchers or promotions with your order, you can still combine multiple orders, however we will not refund any part of the shipping fees for the combined orders.<br /> 2.&nbsp;If the quantity of your orders is more than 4 pairs and you have used no discounts, it will exceed the parcel weight and we will not refund any shipping fees.</p> </div>

Buy One Get One Free + 20% Off Lenses | Code: BOGO20

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Lens Thickness/ Lens Index

Lens Color

What coatings and add-ons do you offer for your lenses?

Photochromic & Transitions® Lenses Introduction

How to choose lenses?

Difference between Spherical Lens and Aspherical Lens

Do the lenses include any coating?

Lens Functions

How to use progressive glasses?

What's the difference between basic coated lenses, standard coated lenses and blue-light blocking lenses?

Do you offer bifocal or progressive lenses?

Do you have prism lenses?

What is the material of your lens?

What is the difference between single-vision and bifocal/progressive lenses?

Can I buy lenses only to fit into my old glasses frame?

Special Lens (known as decentered lens) FAQ

What're the difference between Tint lens, Photochromic lens and polarized lens?

Which kind of lenses are free?

Spherical VS Aspherical Lens (video)

What type of bifocal lens do you use?