Free Express Shipping! Celestron 2.5x Luminos 2" Barlow Lens 2.5x Magnification, 2" Barrel Diameter, Fully Multicoated Optics, Holds 1.25" and 2" Eyepieces, Threaded for 2" Eyepiece Filters, Anodized Aluminum Housing, Brass Compression Rings, Knurled...