Magnifier Rt1 2.0 Strength PK 12 PAIR^ Magnifier, RT1 Series, 2.0 Strength, Clear Anti-Fog Lens, Availalable in 1.0, 1.5, 2.0, and 2.5 diopters, Interchangeable 3-position ratcheting bayonet temples & an adjustable head band with each pair, Light weight n