CowboyStudio Canon EOS Macro Extension Tube for Extreme Close-up Shots, Fits Canon 1D, Mark II, III, IV, 5D, Mark II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Rebel XT, XTi, XS, XSi, T1i, T2i, 300D, 350D, 400D, 450D, 500D, 550D, 1000D One (1) macro ring extension tube Made of sturdy metal rings with a professional black finish Consists of three different rings, providing you with multiple different focus options Rings are simple to adjust Works in manual focus modes only