Features: Focus on Exact Macro Shooting: Professional macro shooting shows more details and makes your shooting became more attractive. Support Exact TTL Exposure and Auto-focus: It can achieve clear and high-quality shooting. Wide Compatibility: Compatible with Canon EOS R mount series all cameras and lenses. It is convenient for photographers to use. Three Combinations: Including two tubes (26mm, 36mm), 3 different combinations for you to choose, easy to use. Superior Material: Made of high quality aluminum alloy, powerful and stable, with delicate design.