The Estima lock was developed by Victor and Braulio Estima in 2009. It is a foot lock which has the same motion as the toe hold.
Category: 7) Sweep Counters
Counter to the sit up sweep from closed guard
Counter to the sit up bump sweep by stepping over the leg and going to the back.
Counter to the butterfly sweep and a counter to the counter
Ronis Gracie shows a simple counter to the butterfly sweep and then shows the counter to the counter.