Mad Rock Gemini Review

The Mad Rock Gemini is one of the most unique locking carabiners we have ever used, with two separate "chambers" accessed by two different gates, which both manage to lock with one single screw lock mechanism. While it works decently for belaying, it isn't super versatile for other applications. While we don't think it's a bad product, we would sooner recommend others for the purpose of preventing cross-loading.