By hollowing out the belly and setting the center of gravity higher, it becomes easier to tip over during action, especially in mid-strolling, contributing to the amplification of the rolling action. When used with no-sinker or nail rigs, it improves the sharpness of darting and escape actions.
The head is thick and securely holds jig heads and trout hooks. The belly and rear are made thinner to ensure sufficient hook space when using offset hooks, making it easier for the hook point to stand up and improving the hooking rate.

The tail section features a sideways fork-tail design.
This prevents excessive tilting and provides a braking effect that stabilizes the swimming posture. It prevents sideways tilting even when retrieving quickly, maintaining a high level of stability in action. In addition, the tail is designed to be as thin as possible, responding quickly to angler input and producing a firm action even with light manipulation.

Each section features different rib depths, thicknesses, and widths, resulting in exceptional action response. The design also contributes to its role as a brake, minimizing travel distance.

The dimples (indentations) on the rear of the back effectively catch the water, improving the stability of the action during mid-strolling.
Furthermore, they enhance straight-line stability during fast retrieves and, by regulating the water flow, contribute to improved action response in the tail section.

The hook-setting assist lines on the back and belly allow for stable hook setting regardless of hook shape or type. The design makes it easy to determine the hook position, ensuring ease of use from setup to actual fishing.