* The product is shipped based on the color or size of the main image of the product page. * Name: Mobile device holder. * Model: CM-8L. Color: Black. * Material: Plastic, soft rubber, and metal. * Application: Connect mobile device to telescopes to take photos. Eyepiece bayonet connection: Compatible with telescope whose eyepiece outer diameter is between 26-43.5mm. Suitable for mobile phones with a width of 62-105mm such as Huawei, Samsung, Apple, Xiaomi, etc. Rubber sucker connection: Connected to mobile device with camera or video function such as smartphones, tablet computers. * 1. Eyepiece bayonet: Internal diameter is between CM-8L: 38.5mm - 43.5mm. 2. Rubber sucker: Connected with mobile device. 3. Lock catch: Rotate clockwise to narrow eyepiece bayonet or anticlockwise to expand eyepiece bayonet, push up to fix eyepiece bayonet. 4. Fine adjustment screw: Loosen to adjust eyepiece bayonet. * Note: 1. Prefer to take photos with touch screen camera if your mobile device has this function. 2. Prefer to take photos with center focus if your mobile device has focus camera. 3. Keep away from fire and heat. 4. If rubber sucker is stained with dust, rinse it for reuse. 5. Do not scratch rubber sucker with sharp objects as its service life may be affected.