SVBONY Barlow Lens 5X Bundle with 3X Barlow Lens 1.25 inch Telescope Accessory Fully Multi-Coated Barlow Eyepiece with Internal Brass Ring

High magnification for eyepieces to see more details of the moon and other planets Each telescope has its own maximum capability of the telescope optics And after the maximum image gets blurred The Maximum usable magnification is usually twice the aperture of a telescope In order to reduce the influence of imaging careful selection of Barlow lens at different magnifications is very important Brass compression ring A brass compression ring just inside the top of SV137 barlow grabs your eyepiece gently but firmly when you turn the screw Once the screw has been secured in place the brass ring keeps your eyepiece in the Barlow instead of relying on the tip of the screw itself protecting the barrel from scratches Lens edges are blackened Black paint on the edge of the lens Reduce scattering of stray light and maximize contrast Metal body and rubber grip ring Durable metal for extended product life Precision machined sturdy for a long-term use Non-slip rubber grip ring design makes it not easy to drop even with gloves on