2 bright led
With foldable head to adjust;
Work with 2AAA battery
With 1.5x,3x,6.5x,8x PMMA magnifier lenses
Material of lens:acrylic resin(processed by crack-proof rigid coating)
Single-lens diameter:29mm
Work with two"AAA"batteries
Lens :Acrylic transmittance good
Materials:ABS reisin.PP resin
Materials:ABS reisin.PP resin
All the lenses of this glasses series are interchangeable.