Plastic

4 PK Unisex Blue Light Blocking Reading Glasses Computer Readers for Men Women Quantity: 4 pairs reading glasses.Available strength : +0.75, +1.00, +1.25, +1.50, +1.75, +2.00, +2.25, +2.50, 2.75, +3.00, +3.50, +4.00.Size: 141mm arm length, 141mm frame width, 51mm lens width, 41mm lens height, 15mm bridge.Lightweight sturdy blue light blocking readers. Shipping: Orders ship out within 1-2 business days; most are actually shipped out on the same day or next day. We only ship on business days, Monday thru Friday. On FREE Shipping we reserve the right to use any carrier and service we deem appropriate. Returns: Please keep your box, packaging and all contents. If an item seems defective please contact the respective manufacturer first for tech support, most items can be brought to proper working condition with the correct technical guidance. We have found google and YouTube user guides to be an excellent way to trouble shoot-fully 85% of reported defects had nothing wrong with them once a little technical guidance was reviewed.Factory defective items and or shipping damage is rare, however it can happen in any industry.If the item is deemed defective please contact us within 14 days. Tell us the problem, your eBay name and we will gladly issue an RMA # (Return Merchandise Authorization) for an EXCHANGE of the same item. Feedback: We strive to deliver quality merchandise in a timely manner. We ask you to please take a moment and leave us Positive feedback. Things can sometimes go wrong and we ask you to please contact us 1st before leaving an unfavorable feedback. We can resolve any problem if you please let us know about it. Contact: Please use "contact seller" feature in ebay for any Questions? Comments! or Requests we will do our best to reply the same day or the next BUSINESS day.