How to Use:
1. Align the mark of the lens mount with the mark of the close‑up ring, and rotate it clockwise. When you hear a click, it means that the lens has been installed in place
2. Align the marking point on the lens close‑up ring with the close‑up ring mounted to the marking point on the fuselage, and rotate it clockwise when you hear a "click" sound, it means it has been installed in place
3. Press and hold the lens release button of the camera body and rotate it counterclockwise to remove the lens together with the close‑up ring
4. Press and hold the release button of the close‑up ring and rotate it counterclockwise, the close‑up ring can be removed from the lens

Specification:
item Type: Macro Extension Tube 13mm+21mm+31mm
Color: Black
Material: Plastic+Alloy
Focus Type: Auto
Working Length: Approx. 13+21+31mm/0.5+0.8+1.2in
Mount: for EF/EF-S Mount
Compatible Camera: for Canon 5D4/5DsR/5Ds/5S3/5D2/5D/6D/6D2/7D/7D2/10D/20D/20DA/30D/40D/50D/60D/70D/80D/77D/90D/850D/200DII/800D/200D/760D/750D/100D/700D/650D/600D/550D/500D/450D/400D/350D/300D/3000D/1500D/1300D/1200D/1100D/1000D

Package List:
1 x 13mm Macro Extension Tube
1 x 21mm Macro Extension Tube
1 x 31mm Macro Extension Tube
1 x Instruction
1 x Storage Bag