Color White Brand Topsun Type Trigonometry Board Kit Trigonometry board is designed with the focus to enhance geometric visualization competence in the learning of Trigonometric concepts and results related to circle and resolution of problems related to it. It promotes learning of these mathematical concepts with inductive as well as deductive reasoning. This board is provided with geo sticks, connedors, pins, rubber bonds and other accessories to prove trigonometric equations. Measure 26 x 26 cm