| 類型 | Manufacturer |
|---|---|
| 網站 | https://www.edroyproducts.com/ |
| 地址 | 245 N. Midland Ave. (PO Box 998) Nyack NY 10960 |
Edroy Products has been manufacturing high-quality vision aids since 1937. In fact they were the first manufacturer of a "hands free" magnifier, the Magni-Focuser.