Features: Thisextension tube is designed for macro shooting, it is made of qualified ABS and aluminum alloy, and copper contact. It perfect matches for Sonysingle lens reflexcamera, and support automatic focus. It is mount lens to shoot at closer distance with higher magnification. The set of adapters consists of 2 rings of different lengths which can be single used or be used in combination. Sincethe magnification changes according to the focallength of the lens, you can easily make closeup shots of small subjects. It enables you to use all shooting modes of the camera, exposure compensation is required. Extensiontubes are designed to enable a lens to focuscloser than its normal setminimum focusing distance. Getting closer has the effect of magnifying your subject while maintaining its original optical quality. Whenusing the extension tubes alone: 10mm or 16mm, or use them in combination : 10mm+16mm=26mm, the focallength of lens should be greater than the length of the tube. Specifications: Condition: 100% Brand New and High Quality Material: ABS & Aluminum Alloy Diameter: Approx. 6cm / 2.3inch Height: Approx. 4cm / 1.5inchFitCamera: for SonyE/FE NEX3 NEX5 NEX6 NEX7 A5000/A6000/A7/A7M2 Series Tube focalLength: 10mm+16mmWeight: Approx. 111gPacking List: 1 x Lens Extension Tube Set 1 x User Manual............