By Sung KyouFebruary 20, 2015

From humble origins to a smart future!

This jump rope will track your progress, calories burned and other crucial workout information!

TANGRAM FACTORY, INC. & TANGRAM FACTORY AMERICA, INC.

KOR |

11F ES Tower, 9, World Cup Buk-ro 58-gil, Mapo-gu,

Seoul, Korea, 03922

USA |

411 Hackensack Ave, Suite 200, Hackensack,

NJ, USA, 07601