Written as 999.9, read as Four Nines. 

999.9 is a brand established in 1995 as a pure domestic eyeglasses frame brand. Since eyeglasses are items placed on our faces; a delicate part of our body, 999.9 eyeglasses frames are designed under consideration of Asian' facial characteristics.

Four Nines aims to provide eyeglasses frames which would retrieve people from stresses of wearing eyeglasses that are out of size.