There are many items in the BYS series that can be used as trailer baits in the series that have been released to date, but the big difference between them is the “fall action”.
When used as a jig trailer, this BYS Double Flap not only appeals by moving the water with its large claws from the time it falls to the time it hits the bottom, but also appeals witha delicate and lively movement from the time it falls to the time it stays at the bottom as the parts on the side of the body (legs) receive the water flow and appeal from the time it falls to the time it hits the bottom.After setting it on the jig, trim the rubber so that the legs of the worm are exposed, and you can maximize the appeal effect from the time it falls to the time it hits the bottom.

Also, if you make your own jig (by hand-winding the rubber), it is recommended to wind the rubber less in advance. This, combined with the shape of the worm, makes it easier for the head weight of the jig to be reflected in the fall speed, allowing for speedy fishing. The characteristic large claws are not only visually appealing, but the linear hands and antennae that transmit the impact on the head when it hits the bottom or other obstacles to the tips of the claws also contribute greatly to the action when it collapses after hitting the bottom or when dragging it.
The BYS Double Flap has parts that respond quickly to rod action and line tension while allowing for a fall that does not cancel out the speed, will be the main character in technical games that use strong and weak and fast and slow.

6 Per Pack