The "Heart-Profile Concave Base" (Tao Xin Ao Di) Full-Sky Star Variant | 41.0mm x 37.0mm | TXADMTX-1001

This listing features the exact pair of walnuts shown in the photos. Stock ID TXADMTX-1001 is a naturally hand-matched, premium pair of traditional "Man Tian Xing" (Full-Sky Star) scholar walnuts featuring the sought-after "Tao Xin Ao Di" (Heart-Profile Concave Base) structural configuration. This pair measures 41.0mm across the primary horizontal edge and 37.0mm in belly depth, presenting a beautifully proportioned low-profile (Ai Zhuang) spherical stance optimized for stable hand-rolling and highly textured tactile feedback. Ready for immediate shipping.

• Stock: 1 of 1 (Single Inventory)
• Variety: Full-Sky Star (Man Tian Xing) - Heart Profile & Concave Base Edition
• Dimensions: 41.0mm (Width/Edge) x 37.0mm (Depth/Belly)

[About the Variety & Configuration]

The Man Tian Xing (Full-Sky Star) variety is historically celebrated for possessing the most intricate, micro-textured shell topography in the entire scholar walnut kingdom. This particular pair showcases the classic "Tao Xin Ao Di" traits: sloped shoulders that taper smoothly into a distinct heart-shaped profile (Tao Xin), paired with a deeply set, cleanly recessed concave navel base (Ao Di). This specific geometric architecture ensures an exceptionally comfortable ergonomic hold and superb physical balance during motion.

[Product Characteristics of TXADMTX-1001]

• Premium Low-Profile Proportions: Measuring a robust 41.0mm across the wide horizontal edge paired with a compact 37.0mm belly depth. This intentional 4mm low-profile differential yields a beautifully grounded, spherical presence. The 41mm footprint offers significant substance in the hand, while the shorter vertical axis allows the pair to clear effortlessly between the fingers for a seamless rolling path.
• Symmetrical Heart & Concave Base Stance: Built with flawless natural symmetry, each piece features a centered vertical spine and a dead-flat, concave base layout that allows them to stand upright reliably on flat surfaces. The weight is evenly distributed around the hollow navel core, providing a predictable, highly balanced roll.
• Micro-Crystalline Lattice Topography: True to the Man Tian Xing pedigree, the surface is densely clustered with thousands of fine, pin-point micro-ridges and tiny interconnected natural nodes. This ultra-detailed texture completely avoids sharp spikes, providing excellent non-slip traction against the skin and delivering an active, therapeutic palm massage.
• High-Density Wood-Bone Acoustics: Grown to full wild maturity with highly robust, extra-thick internal chamber walls, this pair carries substantial physical mass relative to its footprint. When rotated past one another, the mature wood-bone material produces a sharp, high-pitched metallic ceramic click rather than a muffled wooden clack.

[Maintenance & Aging Advice]

Because the "Man Tian Xing" lineage features an exceptionally detailed matrix of fine surface crevices and a deep concave base, it is recommended to keep this pair in a sealed bag when resting between handling sessions for the first month. This practice effectively traps natural skin oils to guide a uniform, blotch-free oxidation process across both the microscopic peaks and deep basal valleys. Handling them directly with bare hands—completely avoiding the use of gloves—is the definitive method to naturally guide them toward a deep, translucent jewel-red finish over time.

[Specifications]

• Variety: Full-Sky Star (Man Tian Xing)
• Configuration: Heart-Profile Concave Base (Tao Xin Ao Di)
• Stock ID: TXADMTX-1001
• Dimensions: 41.0mm (Width/Edge) x 37.0mm (Depth/Belly)
• Texture: Densely packed, micro-crystalline interlocking ridges structured around a low-profile, heart-shaped silhouette with a recessed flat base.
• Best For: Enthusiasts looking for a substantive 41mm pair that showcases premium old-lineage symmetry, a unique concave base structure, and the ultimate micro-textured tactile roll.