The newest perspective glasses which is introduced by Guangzhou XF poker cheat Co.,Ltd. is suitable for all kinds of light. Player can see the marked cards very clearly and easily. Tips for using the perspective glasses: 1. The best suitable situation is under the white light, especially the energy-saving light. 2. Please make sure to wash your hands clearly before wear the perspective glasses in case of infecting your eyes. 3. Before playing the poker games with perspective glasses, the user who is not a myopia had better wear the glasses about several hours for adapting.