Features: Close-up macro shooting; Support series E-mount mirrorless cameras; 10mm+16mm+21mm, can be used alone, can be combined in two or two, or three can be used together; A good alternative to macro lenses for amateur and professional photographers who want to try macro shooting Transform your Lens into a Macro Lens; Support Exact TTL Exposure and Auto-focus; Built-in Electronic Pins and internal driver; 3 EXTENSION TUBES(10mm, 16mm, 21mm); Material: Plastic and Metal; Suitable for: for SONY FE/E-Mount Mirrorless Camera; Tube length: 10mm/16mm/21mm; 10mm Tube (Diameter: 6cm; Hight: 1.5cm; Weight:31g); 16mm Tube (Diameter: 6cm; Hight: 2cm; Weight:38g); 21mm Tube (Diameter: 6cm; Hight: 2.5cm; Weight:42g); Compatible with: for SONY E-Mount APS-C and Full Frame camera (NEX, E-mount, FE-mount) A7 A7R A7S A7II A7RII A7M2 A7SII  NEX-3, NEX-3N, NEX-3R, NEX-C3, NEX-F3K, NEX-5, NEX-5N, NEX-5A, NEX-5T, NEX-5C, NEX-5K, NEX-5R, A5000 A5100 A6000 A6300 A6400 A6500 A6600 A9 A7III A7RIII A7MIII; Package Included: 1 x Extension Tube Ring