UV contact lenses

Instruction:
It is the lenses for seeing the back of the marked cards,with our speacil contact lenses you can see the numbers and suits before you get.
Tips:
1.Best situation for using ,under the white light, especially the energy-saving light.
2.Before you wear them,please make sure clean your hands.
3.Before you prepare to play,it is better wear them about several hours for adapting.