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Made from 3-year-old Moso bamboo (phyllostachys edulis) with vertical grain for strength. Laser engraving produces crisp, permanent markings without inks. The adjustable knot system uses durable hemp cord rated for 5,000 adjustments. Food-safe finish prevents bacterial growth. Each piece ships with a biodegradable cleaning cloth.

Bamboo density: 0.68g/cm³. Tensile strength: 140 MPa. Engraving area: 10x30mm rectangle. Font height: 2.5mm. Working temperature: -20°C to 60°C. Packaging: 100% recycled paper sleeve with soy-based ink printing.
Popular for: wedding party favors (engraved with dates), corporate sustainability events, friendship tokens, or pet memorials. The neutral tan color coordinates with business casual or outdoor gear. Avoid prolonged submersion. Engraving remains legible for 5+ years with normal wear.