1.25 inch Extension Tube for Astronomy Telescope Monocular Eyepiece with Brass Compression Ring

Model Number: Extender Tube Extender Tube: for telescope Length:56mm Size:M28.5*0.6 Material:metal colour:black Package Contents: 1 * Telescope Extender Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.