The action is generated by using the NLW's unique tail drive system and the blade attached to the belly as a source of motion. Blade attached It is good at slow to medium speed range. When the blade touches the left and right, it hits the body and swims while making a knocking sound. The swimming pitch is similar to that of a sinking pencil. Recommended for when you want to invite fish slowly with a shake retrieve or slow winding. Without blade Not good at slow speeds, but great at high speeds. Produces a tail-wagging action like a small fish, and swims like a small fish. Imagine a lipless crank swimming in a nearly horizontal position. It is almost silent, so it is recommended when the fish can see through it with a blade or when you want to use speed to invite fish. Product Description: Length: 40mm Weight: 3.1g Type: Sinking (sinking speed 1'/1sec) Hook: Ichikawa Kamakiri Light No. 12