Description of Gonioscope 4 Mirror: 4 Four-Mirror Glass Gonio Lens is a standard gonio lens for static and dynamic gonioscopy that features four precisely angled mirrors providing a full 360 ° view of the anterior chamber. Features & Benefits: Four precisely angled mirrors provide full 360 ° views of the anterior chamber. All glass design provides superior clarity and durability compared to acrylic lenses. Available in Flanged or No Flange (nf) contact options. No Flange (nf) contact design does not require interface solution allowing quick eye contact, reducing patient discomfort and facilitating the examination. No Flange version not rated for use with ophthalmic laser treatments. This item has a (4) Four mirrors angled at 62 degrees that help in viewing all quadrants of the anterior chamber without rotation. Useful for diagnostic Gonioscopy. All Optical Components Come Standard With Multi Layer Anti Reflecting Coating. Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying. CUSTOM DUTY WILL BE PAID BY CONSIGNEE ONLY.