Contact

  1. By phone: 847.691.0952
  2. By e-mail: CustomerService@TetrahedraNation.com
  3. By mail:
    Tetrahedra, LLC
    PO Box 210

    Deerfield, IL 60015

  4. Returns:
    Tetrahedra LLC – WEB RETURNS
    816 State Street

    Eldorado, IL 62930