ITEM NAME:Brand New Metal 3X Barlow Lens Description: The value must have 3x barlow lens doubles the magnification of any 1.25 inch eyepiece. The apochromatic barlow lens provide a high power magnification allow you look more closely and more detailed at the moon's surface and other planet. 2 element one group broadband green film multi coated optical glass;the housing is blackened to maximize image contrast;both that gets high quality observation without additional chromatic aberration;make image more crisp and sharp. Quality aluminum stock and black anodized body with M42x0.75mm thread. Connect DSLR SLR camera to telescope easily; Specification: Material:Metal Size Chart: Size:Approx. 3.9x9.6cm/1.5x3.8inch Package Includes: 1 Piece 3x barlow lens Note: All dimensions are measured by hand, there may be small deviations. Color may vary slightly due to the color setting of each individual monitor. Thanks for your understanding. Please enjoy your happy shopping time! SKU: ALU0037839877016880.The apochromatic barlow lens provide a high power magnification allow you look more closely and more detailed at the moon's surface and other planet. 1 Piece 3x barlow lens. Color may vary slightly due to the color setting of each individual monitor.