Svbony fully metal T2 extension tube kit length of 8mm 25mm 45mm with M42 thread
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1. Made of fully anodizing aluminum material, durable for long time use
2. This kit including three extension tubes of different length, they can be used separately or together, so you can adjust the appropriate distance to get a clear image
3. The extension tube has a M42 male thread and a M42 female thread for solving distance problems in astrophotography and eliminating a range of focusing problems