1 Made of aluminum alloy material through precision craftsmanship, it is durable and corrosion resistant. 2 The inner wall is treated with extinction processing to prevent the radiation from affecting the imaging. 3 Used to connect the camera to astronomical telescope, it has stable performance and high reliability, which is a very practical accessory. 4 It is easy to install and flexible to operate, which can effectively save your time and efforts. 5 Light in weight, it will not burden your device when using it, and it can protect your camera.Item Type: Adapter RingMaterial: Aluminum AlloyProduct Color: BlackInternal Thread Depth: Approx. 6mm / 0.2inExternal Thread Depth: Approx. 4mm / 0.2inFlange Distance: Approx. 8mm / 0.3inClear Hole Diameter: Approx. 45mm / 1.8inProduct Weight: Approx. 27g / 1.0ozMount: SCT (M51x1mm), M48x0.75mm

What's in the box
1 x Adapter Ring