Lens Adapter for M52 M42 17 31mm Helicoid Macro Extension Tube with Aluminum Alloy Construction for Macro Photography

[Broad Compatibility] Suitable for M52 mount lens and M42 mount adapter , providing a ing system for camera. [ Length] Can be adjusted from 17mm to 31mm, support manual ing, 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. Features- [Broad Compatibility] Suitable for M52 mount lens and M42 mount adapter , providing a ing system for camera. [ Length] Can be adjusted from 17mm to 31mm, support manual ing, 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 , sturdy and . [Compact Size and Light Weight] . 7cm Diameter and weights only 99g, convenient for storage and carrying. Specifications- Model: M52-M42(17-31)  Color: Black Material: Aluminum alloy Product Size: 6.5 * 6.5 * 2cmCelsius 2.7 * 2.7 * 0.86inch Product Weight: 64gCelsius 2.2oz Package Size: 7.6 * 7.6 * 3cmCelsius 2.9 * 2.9 * 1.1inch Package Weight: 69gCelsius 2.4oz Note:  Only the camera lens adapter is included. Package List- 1 * Adapter