Specification Brand : Generic BulletPoint1 : 【APPLICATION PLACE】— This Optometry Frame is suitable for opticians, optical shops, schools and corporate ophthalmology for vision examination, high quality professional optometry trial frame. BulletPoint2 : 【HIGH-QUALITY MATERIALS】— The optical test frame is made of high-quality plastic, Pure Titanium and silicone, which is strong and stable, can be used for a long time, and is resistant to impact and abrasion. BulletPoint3 : EXCELLENT PERFORMANCE】— Our Trial Lens Frames feature easy-to-read digital scales for ease of use and high-quality construction for professionals. BulletPoint4 : 【SUPER LIGHTWEIGHT】— The optical audition frame is made of high-quality and lightweight material, which is light in weight, does not feel heavy when wearing, and is flexible and comfortable to wear. BulletPoint5 : Aluminum Box ★ This case is made of premium aluminum with a combination lock. The lock comes factory set to 000. Open it by pushing the button outward and reset the combination to whichever 3 digits you like while pushing the button inward. Color : 64mm CompatibleDevices1 : Boss 4055 CompatibleDevices2 : Boss 1630 CompatibleDevices3 : Boss 2440 CompatibleDevices4 : Boss 3665 (Dual head) CompatibleDevices5 : Boss LS-1416 CompatibleMountings : Boss 4055 Boss 1630 Boss 2440 Boss 3665 (Dual head) Boss LS-1416 Department : unisex-adult ExternallyAssignedProductIdentifier1 : 0711523714434 ExternallyAssignedProductIdentifier2 : 711523714434 FocalLengthDescription : 20 mm FocusType : Manual Focus GpsrSafetyAttestation : 1 ItemName : Pure Titanium Trial frame adjust the leg and different PD use for glasss and Optical hospital Adult and child (64MM) ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : science-classroom-optics-kits LensDesign : Zoom Manufacturer : American Photonics Material : Aluminium Case MaxFocalLength : 20 millimeters MinFocalLength : 20 millimeters ModelName : Trial frame ModelNumber : OT-HJde-2452 PartNumber : LS-2065 Pattern : Solid ProductDescription : Trial frame ProductSiteLaunchDate : 2023-05-04T12:16:10.994Z Size : 52mm 54mm 56mm 58mm 60mm 62mm 64mm 66 mm 68mm 70mm Style : Trial frame SupplierDeclaredDgHzRegulation : other TargetGender : unisex UnspscCode : 41111700 ZoomType : Fixed