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parallel line textures on rings and bangles
opens from 0" to 5/32" (0–4mm)
Auto degassing
The English-language edition features a new layout and more durable cover
Beyond teaching the ability to render forms clearly for clients
Donegan OptiVISOR DA-4 2X Magnification at 10" Rhodium parallel line textures on ringsThe Genuine Donegan OptiVISOR is a precision binocular headband magnifier that permits unrestricted user efficiency while reducing eye strain. It leaves both hands free and allows three dimensional vision. Used by anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety eyeglasses. DA 4 gives 2 X magnification and focuses at 10" This is the original OptiVISOR proudly made by Donegan Optical Ltd right here