Srutueo Magnification: 5X Lens material: optical glass lens Lens coating: Broadband coating Thread specification: M28.5x0.6 pitch Appearance color: black Net weight: 12g Gross weight: 16g Interface size: 1.25 inches (about 31.7mm) Material:Aluminum alloy colour:black Package Contents: 1 x 5X Barlow Lens 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.