Features: Suitable for all EF & EF-S mount lenses. Combined of 3 tubes with different length of: 13mm, 21mm, 31mm; Can be flexibly combined into different lengths to use. Built-in electric pins, perfect for macro . Superior lock pin which can tighten the tube joint, excellent TTL and autofocus.<br><br>Colour: Black Material: Aluminum alloy High quality and compact, net weight only 102g, super and portable. Specifications: Suitable: For all EF & EF-S mount lenses Item Weight: 102g / 3.6oz Note: Only the macro extension tube ring is included.<br><br>Package Contents: 1 x Auto AF Macro Extension Tube Set<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.