For blind people specifically, this 3x3x3 Cube was created. The design of the Braille is 3D embossed. The player can ead the content more apidly and accurately because the feel is stronger than that of a egular cube.Crafted with eco-friendly ABS material,harmless to human and environment. Lightweight and comfortable in the hand ,you could try to stretch your brain capacity or spending some leisure time with it whenever and wherever you are.It is suitable for people with higher difficulty or visual impairment with eyes closed.