Finally revealed! One of the secrets of the Estima brothers, the Estima lock is a dangerous foot lock developed by Victor Estima and used at the highest levels of competition by both Victor and his brother, world champion - Bráulio Estima. This foot lock comes on super fast and super strong. Some call this the strongest foot lock there is. On this instructional Victor carefully teaches all the details on how to set up and finish from various positions.