High Quality Material: Heart diffraction glasses are water-resistant, the frame is made of environmentally friendly PC material, The lens is made of AC material, made it firm and not easy to fall off and could be cleaned. Heart Shape Special Effect: Diffraction glasses make any party perfect. With our diffusion glasses, you can see special heart shape effects when you look at the light at night. Easy to Use: Stand in front of a light source and look into the light. Our glasses make the lights explode in colorful hearts shape. Wide Application: Whether it is a music festival, carnival, party, bar, firework show, etc., you could wear it and be surrounded by love. Ideal Gift: Perfect party favors for night time wedding receptions, Valentine's Day gifting, Halloween treats, EDM and Music festival events etc.