The Petzl Micro Traxion Pulley is one of the smallest, lightest, and most efficient pulleys on the market, and yes, it is as good as it sounds. This versatile piece is incredibly lightweight while also offering 91% pulling efficiency and a fast catch when you need it. The grip is almost too reliable, and it can be quite difficult to undo the pulley, but the security it offers is worth it, especially for the ease of use compared to bulkier models.