Optical Wire Frame Adjustable Optical Trial Lens Frame Stainless Steel Panel Interchangeable Cylinder Axis DropshippingFeatures: Rotation degree of the lens around the optical axis in the lens frame: 360. Easier to use and easier to wear Easily replaceable cylinder axis. It offers all the adjustments to ensure a proper and comfortable fit for the patient. The axial pitch increases along the axis of the lens frame counterclockwise. It is suitable for eye examination in eyeglass shops, ophthalmology department in hospitals, schools and enterprises. Specification: Material: Metal Axis Rotation: 360 degrees. Pupil distance range: 48mm-80mm; Step: 1mm Mirror Ring Diameter: 38mm Lens Number: 8 LensPackage Included: 1x Optical Wire FrameNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.