A high-response power snap that can be opened and closed from both sides.The V-shaped vent prevents the knot from slipping and provides a stable lure action and maximizes wire strength.When a certain amount of force is applied, the cross lock part shifts to the side and stretches momentarily, providing a cushioning effect and reducing line breaks.Furthermore, since it is a double-opening type, it can also be used as a rolling snap swivel by passing a rolling swivel through the knot side.