The "Bold-Ribbed Lion Head" (Cu Jin) Elongated Deep-Belly Pair | 39.0mm x 43.0mm | CJ-1002

This listing features the exact pair of walnuts shown in the photos. Stock ID CJ-1002 is a naturally hand-matched, boutique pair of traditional "Cu Jin" (Bold-Ribbed Lion Head) walnuts. This pair measures 39.0mm across the primary horizontal width and a substantial 43.0mm in belly depth, presenting a highly pronounced, deep-bellied architecture scaled perfectly for substantial palm volume. Ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Bold-Ribbed Lion Head (Cu Jin)
• Dimensions: 39.0mm (Width) x 43.0mm (Depth/Belly)

[About the Bold-Ribbed Variety]

The Cu Jin variety earns its descriptive name from its remarkably thick, muscular, and prominent surface lines. Unlike fine-textured or micro-rippled lineages, this variety is defined by heavily raised, bone-dense skeletal ridges that wrap boldly around the shell layout. Structurally, it is recognized for dropped shoulders, an upright vertical stance, and a stable base. Built with exceptional internal wall thickness, it emphasizes structural mass, high-friction handling, and a distinct tactile feel.

[Product Characteristics of CJ-1002]

• The Pronounced Deep-Belly Profile: Measuring 39.0mm in horizontal width paired with an expansive 43.0mm belly depth. This significant 4mm inverse differential yields a remarkably full, elongated shape. The 39mm footprint ensures that the pair remains nimble and easy to clear between your fingers during rotation, while the protruding 43mm depth actively fills out the center of the palm.
• Centered Vertical Posture: This pair features a centered flat base layout that stands upright reliably. The vertical alignment is clean and perfectly straight across the prominent main seams, ensuring a balanced distribution of weight and a highly predictable rolling path.
• Muscular Ribbon Topography: The surface is heavily sculpted with a dense network of broad, flowing vertical ridges and deep, clean natural valleys. This distinct texture avoids sharp or spikey points, providing excellent non-slip traction against the skin while delivering an invigorating, deep-tissue hand massage during daily handling.
• Resonant Wood-Bone Acoustics: Grown to full wild maturity with extra-thick internal chamber walls, this pair carries significant physical weight relative to its size. When rotated past one another, the dense wood-bone material produces a distinct, high-pitched ceramic click rather than a hollow wooden clack.

[Maintenance & Aging Advice]

Because the "Cu Jin" variety features highly dense bone material and broad deep recesses, it is recommended to keep this pair in a sealed bag when resting between handling sessions for the first month. This practice traps natural skin oils effectively to guide an even, blotch-free oxidation process across the entire surface area. Handling them directly with bare hands—completely avoiding the use of gloves—is the established method to naturally develop a uniform, deep translucent crimson patina over time.

[Specifications]

• Variety: Bold-Ribbed Lion Head (Cu Jin)
• Stock ID: CJ-1002
• Dimensions: 39.0mm (Width) x 43.0mm (Depth/Belly)
• Texture: Thick, heavy-set vertical ridges structured around an elongated, deep-bellied silhouette with a stable flat base.
• Best For: Enthusiasts looking for a nimble 39mm width pair that delivers the massive hand-filling volume of a 43mm deep belly, heavy wood-bone density, and an exceptional tactile roll.