Through the arrangement in different directions, the color difference of similar pixels formed by the refraction of light by lines can clearly see the four rings at one angle and integrate with the background pixels at another angle. 

Pic 1.Irregular shape, mirror lines  according to the design Angle  and the perfect combination of  grain ；Pic 2.Gradient mirror lines and  grain pattern combination ；

A combination of particles and mirror lines  

   Grain pattern 

   Combination of gradient mirror lines and grain patterns 

   Irregular shape, perfect combination of mirror lines and particles according to the design angle 

   Combination of lines and particles 

OPTICAL PATTERN ：

Universality：According to the product material properties, modeling structure, use environment, scientific selection 

Rational Usage：Density, thickness uniformity, detail, bring more  comfortable visual and tactile texture 

Refinement：Any plastic, any metal, can be used