Sell TOMO/ Andoer M52-M42(17-31) 17mm-31mm M52 to M42 Mount Camera Lens Adapter Ring Macro Extension Tube Helicoid Lens Focusing Adapter Ring for Macro Pho best price

Features： [Broad Compatibility] Suitable for M52 mount lens and M42 mount adapter ring, providing a focusing system for camera. [Focus Length] Can be adjusted from 17mm to 31mm, support manual focusing, satisfying your various needs, flexible and convenient to use. [Macro Extension Tube] Can be used as an old lens and macro extension tube, perfect for macro photography, digital camera photography, and more, easy to install and use. [Premium Aluminum Alloy Construction] Made from high-quality aluminum alloy with advanced anodic oxidation technique, sturdy and durable. [Compact Size and Light Weight] Max. 7cm diameter and weights only 99g, convenient for storage and carrying. Specifications： Brand: Andoer Model: M52-M42(17-31)  Color: Black Material: Aluminum alloy Product Size: 7 * 7 * 2.2cm/ 2.7 * 2.7 * 0.86inch Product Weight: 99g/ 3.4oz Package Size: 7.6 * 7.6 * 3.3cm/ 2.9 * 2.9 * 1.2inch Package Weight: 109g/ 3.8oz Note:  Only the camera lens adapter ring is included. Package List： 1 * Adapter Ring