• tensorprana mr duc handmade
     

    A MAKER'S WORKSHOP

    Made by one pair of hands.

    After leaving the city in his late thirties, MR Duc
    came home to Ninh Bình to work with copper. Every tensor
    ring, pyramid, and healing tool you'll find here is shaped
    by him — one piece at a time.

    Meet the Maker →
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    Copper. By hand. One piece at a time.

    Tensor rings, pyramids, and healing tools from a small workshop in Ninh Bình, Vietnam.

    Shop the Collection →

Every piece is welded by hand

Tensor rings, energy pyramids, lotus grids, healing
wands, and crown pieces — each cut, coiled, and welded
by hand from 99.9% pure copper. Tuned to sacred cubit
measurements and Solfeggio frequencies.
No machines. No jigs. Just slow work, one piece at a time.

Shop by Frequency

Featured pieces from the workshop

A small selection of what's available now. Each one made one at a time.

    Why TensorPrana

    • 99.9% Pure Copper

      No coating. No lacquer. The metal breathes, oxidizes, and develops a living patina the way copper has done for thousands of years.

    • Tuned to Sacred Frequencies

      Each piece is measured to Sacred Cubit, Lost Cubit, or 1/2 Cubit dimensions — and tuned to specific frequencies including 144 MHz, 528 Hz, and the Solfeggio scale.

    • Made One at a Time

      Small batches, no production line. When a piece doesn't feel right, it gets taken apart and remade. Each one carries the attention given to it.

      Buy direct from the workshop.

      TensorPrana is not a reseller. Every tensor ring, pyramid, and healing tool is made here — by us, in Ninh Bình. Working directly with the maker means workshop pricing, custom frequencies on request, and full control over what your shelves carry.
      Wholesale partners include wellness boutiques, yoga and meditation studios, energy healing practices, and independent practitioners across the US.


      Apply for Wholesale

      What practitioners are saying

      Excellent 4.8 / 5

      • Tuned with real intention

        The weight, the polish, the resonance — you can feel this wasn't mass-produced. My copper pyramid arrived wrapped like a relic. It holds the frequency beautifully during meditation sessions.

        Sarah M., Energy Practitioner

      • Direct-from-maker quality

        We've sourced from several copper suppliers across Asia. TensorPrana is the only one where every piece looks workshop-finished, not factory-stamped. Our customers ask where we get them.

        David L., Crystal Shop Owner, Colorado

      • More than an object

        You can sense the maker's hands in this piece. There's a quiet integrity to the work — nothing flashy, nothing rushed. It has become a permanent part of my altar.

        Elena R., Yoga Teacher, Lisbon