The "Bold-Ribbed Lion Head" (Cu Jin) Balanced Wide-Edge Pair | 42.0mm x 40.0mm | CJ-1001

This listing features the exact pair of walnuts shown in the photos. Stock ID CJ-1001 is a naturally hand-matched, boutique pair of traditional "Cu Jin" (Bold-Ribbed) walnuts. This pair measures 42.0mm across the primary horizontal edge and 40.0mm in belly depth, presenting a classic wide-edge, beautifully squatted architecture designed for a stable and substantive hand-rolling experience. Ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Bold-Ribbed Lion Head (Cu Jin)
• Dimensions: 42.0mm (Width/Edge) x 40.0mm (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. Structurally, it is recognized for broad dropped shoulders, a low-slung horizontal stance, and a highly stable, flat base. Built with exceptional internal wall thickness, it emphasizes structural mass, high-friction handling, and a distinct tactile feel.

[Product Characteristics of CJ-1001]

• The Balanced Plump-Belly Profile: Measuring a prominent 42.0mm across the wide horizontal edge paired with a robust 40.0mm belly depth. This subtle inverse differential yields a beautifully rounded, squatted shape. The 42mm footprint delivers an authoritative, palm-filling presence, allowing the heavy frames to glide past each other with effortless, fluid momentum across the fingers.
• Stable Flat-Base Stance: True to its premium pedigree, this pair showcases a broad, dead-flat base layout that allows each walnut to stand completely upright and stable on flat surfaces. The vertical alignment is straight, neat, and perfectly centered across the prominent main seams, ensuring 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 rotation.
• 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 spun 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-1001
• Dimensions: 42.0mm (Width/Edge) x 40.0mm (Depth/Belly)
• Texture: Thick, heavy-set vertical ridges structured around a low-slung, wide-edged silhouette with a stable flat base.
• Best For: Enthusiasts looking for a classic 42mm pair that delivers a smooth, muscular profile, heavy wood-bone density, and an exceptional tactile roll for daily handling.