The set includes: you will receive 4 pieces of 3D glasses, enough to meet your various viewing needs and replacement, you can share them with friends and family. Versatility: This red and blue 3D glasses are suitable for most types of red and blue 3D movies, 3D games, and 3D picture appreciation, bringing you a pleasant experience. Compatible with multiple devices: simple red and blue 3D glasses can be used for ordinary computer monitors, laptops, projectors, computers and most display devices High-quality materials: These minimalist style 3D glasses use black plastic frames and red and blue high-quality resin lenses, which are durable and reliable, not easy to break, light weight, easy to carry, and can be used for a long time Suitable size: The total width of the 3D movie style glasses is approximately: 15.5 cm / 6.1 inches, and the leg length is approximately 13.2 cm / 5.2 inches, suitable for most people, stylish and comfortable