Features: <br> <br>This focusing helicoid tube is made of good aluminium alloy, sturdy and durable. <br>The length of this helicoid tube is adjustable, it offers a distance for lens focusing adjustment, easy to use. <br>This helicoid tube is useful for those lenses without focus ring. <br>It can be used as macro barrel and offers fine focus control for macro photography. <br>It will be better when you use it with filter adapter together. <br> <br>Specifications: <br>Condition: 100% Brand New <br>Item Type: Telephoto Lens <br>Material: Aluminium Alloy <br>Color: Black <br>Adjusting Length: 25-55mm <br>Size: Approx. 5.8 x 2.9cm / 2.3 x 1.1inch <br>Weight: Approx. 90g <br> <br>Package List: <br>1 x Focusing Helicoid Adapter<br>1、This focusing helicoid tube is made of good aluminium alloy, sturdy and durable. <br>2、The length of this helicoid tube is adjustable, it offers a distance for lens focusing adjustment, easy to use. <br>3、?This helicoid tube is useful for those lenses without focus ring. <br>4、?It can be used as macro barrel and offers fine focus control for macro photography. <br>5、?It will be better when you use it with filter adapter together.