Objectives are multi-coated for high light transmittance. Prisms are BAK4 optical glass. Has central focusing with right eyepiece adjustable focus. Rubber eyeguards. 40mm achromatic objectives. 8 power. Field of view is 168m x 1000m. Includes soft case and lens covers. Boshiren brand. Has the look, feel, and performance of quality. New. Limited supply.