Description Premium MaterialThe heart diffraction glasses are made of environmentally friendly PC material, which is water-resistant, firm, not easy to fall off or break, durable for long time use. Heart Shape Special EffectHeart-shaped special effect glasses could transform any angle light into a love heart shape. With our diffusion glasses, you can see special heart shape effects when you look at the light at night. Easy to UseThe 3D heart diffraction glasses are only evident when you are looking head-on at a point of light. You can wear heart shape refraction glasses on your eyes, on your head, on your neck, or on the edge of your hat. Wide ApplicationsIdeal for music festivals, carnivals, parties, bars, firework shows, etc. Note that it is entertainment equipment, please do not use it while driving or other formal activities.