Kaymar's snatch block is designed specifically as an aid for winch recovery. The sides of the Snatch Block pivot apart to allow the winch cable to be fitted into the specifically designed sheave. When in use the block is anchored through the large eyelet and provides you with double the pulling power, at half the load on the Tirfor or winch. Kaymar's 150mm Snatch Block can be used in conjunction with a power or hand winch, and is most likely the strongest snatch block available.