Made of premium aluminium alloy, solid construction is wearable and durbale for years of use.CNC machining ensures sleek surface and precise cutting of rail, it fits your telescope perfect.Easy to use, with it you can install telescope findscope on your telescope.Suitable for C8/C8HD/C925/C11HD, SKYRVER 80ED/102ED/130APO, SKYRVER 100ED and many other binoculars.Nice accessory for star observation lovers.Size: Bottom edge 34MMWeight: Approx. 30gcolour: blackMaterial: aluminum alloyPackage Contents:1 x Dovetail Slots2 x ScrewOnly the above package content, other products are not included.Note: Light reflection 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.