662917 - 

Binocular Headband
Magnifier headband fitted with two ground glass lenses in a binocular arrangement having a magnification power of x 2.7 and giving good depth of field. The lenses are set into a black A.B.S. frame wide enough to allow spectacles to be worn underneath. The headband is adjustable, between 480 and 570mm circumference.,Alternative lenses are available in 1.8x (stock no. 662-917) and 3.5x (stock no. 662-923) magnification, which can easily be retro-fitted to the headband in place of the 2.7x magnification leneses fitted as standard.