The "Beijing Chicken Heart" (Ji Xin) Elongated Deep-Belly Pair | 38.0mm x 40.0mm | BJJX-1001

This listing features the exact pair of walnuts shown in the photos. Stock ID BJJX-1001 is a naturally hand-matched, premium pair of traditional "Beijing Ji Xin" (Beijing Chicken Heart Lion Head) walnuts. This pair measures 38.0mm across the primary horizontal width and 40.0mm in belly depth, presenting a classic heart-shaped, elongated silhouette optimized for agile rotation and tactile engagement. Ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Beijing Chicken Heart (Ji Xin)
• Dimensions: 38.0mm (Width) x 40.0mm (Depth/Belly)

[About the Beijing Chicken Heart Variety]

The Beijing Ji Xin variety is one of the oldest and most respected classic lineages within the traditional culture of wild-grown scholar walnuts. It earns its descriptive name from its distinctive organic geometry, which naturally mimics the tapered, anatomical shape of a heart. Characterized by an upright vertical stance, a distinctly pointed apex (tip), tightly sloped shoulders, and a substantial, deep belly, this variety is highly regarded for its dense shell material and exceptional rolling mechanics.

[Product Characteristics of BJJX-1001]

• Classic Heart-Shaped Deep-Belly Geometry: Measuring 38.0mm in horizontal width paired with a full 40.0mm belly depth. This intentional 2mm inverse differential yields a prominent, high-桩 (high-profile) vertical form. The nimble 38mm width allows the pair to clear easily between the fingers for rapid, unhindered rotation, while the extended 40mm depth actively engages the sensory points in the center of the palm.
• Centered Architectural Apex & Stance: This pair features a strong, upright posture centered around a sharp, well-defined top point. The vertical seams run clean and straight down to a neat, stable base, ensuring a highly predictable rolling path and an evenly balanced distribution of unit mass.
• Dense Net-Like Topography: The shell surface is sculpted with a tightly integrated network of fine vertical wrinkles and shallow natural crevices. This textured matrix provides steady friction against the skin, delivering an active and stimulating palm massage during daily handling without any spikey sharpness.
• Resonant Wood-Bone Acoustics: Grown to full wild maturity with extra-thick internal chamber walls, this pair carries significant structural mass relative to its size. When rotated past one another, the mature wood-bone material produces a distinct, high-pitched ceramic click rather than a dull wooden clack.
• [Maintenance & Aging Advice]

Because the "Beijing Ji Xin" variety features a highly dense shell and an intricate matrix of fine surface wrinkles, 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 a uniform, blotch-free oxidation process across the entire surface. Handling them directly with bare hands—completely skipping the use of gloves—is the established method to naturally develop a deep, uniform translucent crimson patina.

[Specifications]

• Variety: Beijing Chicken Heart (Ji Xin)
• Stock ID: BBJX-1001
• Dimensions: 38.0mm (Width) x 40.0mm (Depth/Belly)
• Texture: Dense, network-style fine wrinkles arranged around an elongated, heart-shaped silhouette with a pointed apex.
• Best For: Enthusiasts seeking an agile 38mm width pair that showcases historic high-profile geometry, heavy wood-bone density, and an exceptional hand-rolling volume.