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Main Technical Indicators
Optometry Child Universal Trial Lens Frame Optician Test Tool 52-70mm
Features: 360 degree astigmatism axis position, error within one degree.
Lightweight and comfortable, weighing 22.2-22.6 G.
Flexible memory plastic, can bend 120 degrees.
Integrated soft silicone nose support, more comfortable to wear.
The use of aluminum magnesium alloy material, wear-resistant, not easy to deformation, the number does not fade.
Size: 52-70mm
Package Includes: 1xTrial Frame
Specifications
1.Pupil distance range: 52; 54; 56; 58; 60; 62; 64; 66; 68; 70mm.
2.Axis scale:360° on the left; 360° on the right.The axis scale increases anticlockwise along the axis of the frame, and the marking interval is 5°.
3.Effective internal aperture of frame:Φ38mm.
4.The number of lenses that can be inserted into the left and right frames:3.
5.Rotation degree of optical axis of lens in inner ring of frame:360 °.
6.The nonparallelism between the optical axis of the lens and the geometric axis of the frame: ≤2.5
7.The difference between the optical center and the geometric center of the lens:≤0.5mm.
8.Displacement of the lens relative to the geometric center of the frame:≤0.3mm.
9.Adjustable length range of the left and right frame leg:125~155mm.
Processing time
According your order list. we will supply delivery time .
Commonly is 5-7 work days after we confirm payment
Shipping time
By Express : 3-7 days . Door to door service
By Air : 3-7 days . (the goods arrival at your local air ports
By sea : 30-40 days (the goods arrival at your local sea ports )
PS : by air or by sea, if you need door to door service, please tell us . we will help you checking the extra door to door cost.
How many months warranty do you provide ?
one year
What should I do if the machine have question ?
For ensuring all the items are in good quality, we will test all products before the packages were sent out. Once the machine have some question, please don't worry. kindly send us some images of the situation , Video and machine series, and explain the question in where . we will supply solution to you deal soon.
What should I do if the spare parts is broken in Warranty ?
If in Warranty, some spare parts broken in the Use. kindly supply picture or video , and machine series number .
We will send the spare parts by express to you soon.. and we bear express cost .
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United States
Carrier
CostDelivery TimeTracking
EMS
$ 31.32 0-27 daysAvailable
Fedex IP
$ 35.72 3-27 daysAvailable
DHL
$ 43.15 0-27 daysAvailable
UPS Express Saver
$ 74.16 0-27 daysAvailable
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