CES1153 Features: * Telescope lens * 3 Element apochromatic lens * Fully multi-coated optics * Increases contrast and minimizes internal reflections * Brass compression ring * Securely holds your eyepiece in place Color/Finish: * Superior sharpness and color correction Dimensions: * Dimensions: 2" H x 2" W x 3" D Warranty: * 2 Year warranty