Frame material: aluminum alloy
Use step and precautions:
1. Use a lens cloth or cover to cover the finder lens to avoid operation!
2. Check the filter directly at the sun to check if there is light leakage, and it is strictly forbidden to use it.
3. After the test is completed, put the filter on the light inlet, and check the fixation. 
When it is intact, measure the light at the eyepiece and operate without abnormal light!
4. During the observation process, don't allow people on the side to move the cover easily.

About Item
All items sold by us are being described to the best of our abilities, as accurate as possible, and with utmost conscientiousness on our part.
However, to avoid any potential oversights, I respectfully request your assistance in helping us to make this a mutually satisfactory transaction by THOROUGHLY
reviewing item description and photos, and asking all questions PRIOR TO BIDDING.
Customer Satisfactory
1.Do not hesitate to contact us anytime before and after your purchase, we are committed to your 100% customer satisfaction.
2.We back our commitment with superb service, 100% full money back and a customer satisfaction guarantee.
3.I am here and ready to assist you with any questions or concerns you might have before or after the purchase.
4.My goal is to make sure you are a happy customer and pleasant shopping with us.
Feedback
If you are satisfied with the purchase and our total service, your comment is very important in our business success. Please take a minute to leave us a positive feedback with an overall Detailed Selling Rating (DSR) of 5.
Our eBay account setup auto feedback, so eBay system gives you automatically Positive feedback back after your positive feedback left.
If you plan to give us a neutral/negative feedback Or open ebay/paypal case, please write to us immediately so that we can do our best to resolve your problem.

1. All our stock is located in China and all shipments will originate here. Your purchase will be shipped via standard airmail two or three days after payment clears except those custom products.
2. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility. 
    Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.
3. Shipments will be shipped from china by EMS or DHL or Fedex or UBI. A tracking no. is provided once the item is dispatched. Delivery normally takes 7-20 business days if it can go smoothly through customs. 
4. We do not ship on holidays or weekends.

1. If you receive any damaged or defective items, we will exchange it as quickly as possible.
2. You must contact us within 7 days of delivery of the product to notify us of any defects.
3. You need to send a picture to prove the problems by using ebay's attaching files button.
4. Items must be in original box and kept in good condition.
5. Buyer is responsible for return shipping cost if there isn't any problem with the product. No matter the item is free shipping or not.