Specially designed for Canon EOSR mount lenses, suitable for Canon EOSR/EOS-RP cameras.Combined of 2 different extension tubes, including 12mm + 24mm, they can be used separately(12mm/24mm) or in combination(12mm+24mm), for different focal length.Built-in electric pins, superior lock pin which can tighten the tube joint, to shoot at closer distance with higher magnification, to achieve macro effect with excellent photo quality.Support camera TTL, autofocus function and EXIF information transmission, only shooting according to actual photometric conditions, very convenient.High quality and compact machining, super lightweight and portable.Item Name: Extension Tube RingMaterial: Plastic, AlloyFeatures: Durable, Auto Focus, Camera AccessoriesSize: 6.7cm x 6.7cm x 6cm/2.64" x 2.64" x 2.36" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Set of Extension Tube Ring