Features: Suitable for all EF and EF-S mount lenses. Set includes three extension tubes with lengths of 13mm, 21mm, and 31mm; can be used individually or combined for different magnification levels. Equipped with electrical contacts for full communication between lens and camera, supporting TTL metering and autofocus. Secure locking mechanism ensures stable connection between tube segments. Color: Black Material: Aluminum alloy Lightweight and portable design, weighing only 102g. Specifications: Compatibility: All EF and EF-S mount lenses Item Weight: 102g / 3.6oz Note: The package includes only the macro extension tube set. Package Contents: 1 x Auto Macro Extension Tube Set Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.