The "Thick Ridge" (Cu Jin) Pair | 40.0mm x 40.0mm | CJ-601

This listing is for the exact pair shown in the high-definition photos. Stock ID CJ-601 is a meticulously matched, boutique-grade pair of "Thick Ridge" (Cu Jin) walnuts, ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Thick Ridge (Cu Jin)
• Classification: Boutique Grade (Jing Pin) / Premium Match (Jing Pei)
• Dimensions: 40.0mm (Width) x 40.0mm (Depth)

[About the "Thick Ridge" Variety]

The Cu Jin, translating to "Thick Ridge" or "Thick Vein," is a highly textured and robust Wenwan variety. It earns its name from the exceptionally pronounced, muscular ridges that protrude prominently from the shell's surface. This exaggerated, bold texture provides intense, deeply engaging tactile feedback and maximum acupressure stimulation during rotation. Coupled with excellent shell density, it is a favorite for collectors who prefer a heavy-hitting, highly structured handling experience.

[Characteristics of CJ-601]

• Boutique 1:1 Proportion: Measuring exactly 40.0mm in width and 40.0mm in depth, this pair boasts a flawless, perfectly balanced 1:1 footprint. This elite symmetry ensures the walnuts roll seamlessly and beautifully in the palm, providing an incredibly stable and satisfying feel.
• Pronounced "Thick Ridge" Texture: True to its name, the surface features highly distinct, muscular, and elevated ridges with deep valleys in between. This provides an aggressive, non-slip grip and incredible deep-tissue massage during long handling sessions.
• Premium Match (Jing Pei): Finding perfect hand-selected symmetry in heavily textured varieties is exceptionally difficult. Both walnuts have been carefully sorted for their matching 40x40mm sizing, matching thick-veined patterns, and highly uniform silhouettes.
• Daily Use: At a substantial 40mm, this is a beautifully sized everyday carry (EDC) pair. It offers the perfect combination of a substantial grip, flawless balance, and intense tactile feedback for a deeply rewarding patina journey.

[Specifications]

• Variety: Thick Ridge (Cu Jin)
• Stock ID: CJ-601
• Classification: Boutique Grade (Jing Pin) / Premium Match (Jing Pei)
• Dimensions: 40.0mm (Width) x 40.0mm (Depth)
• Texture: Highly pronounced, thick, and muscular ridges on a perfectly balanced shell.
• Best For: Enthusiasts seeking a flawless 1:1 balanced 40mm pair with intense, heavy-hitting texture, elite symmetry, and maximum acupressure stimulation.