I sold my Canon gear shortly after acquiring these, so I have no further use for these Promaster Extension Tubes. They're in like new condition, and you can see that they were not cheap, but I've priced them as a super bargain because I want them to sell quickly. Buy them and dive into the world of macro photography without investing hundreds of dollars in a dedicated macro lens.

Be aware that most cheap extension tubes do NOT autofocus or transfer data to and from the lens. These do. That's why they were expensive.