JJC AET-CS Auto Macro Extension Tube 12 & 20 & 36mm for Canon EF-S EF mount

JJC Automatic Extension Tube allows your lens to focus closer than its normal minimum focus distance. JJC AET-CS Automatic Extension Tubes are available as a set (12mm, 20mm and 36mm), or as individual tubes in 12mm, 25mm to fit Canon EOS.