Package includes: you will receive 4 pack of 3D style glasses, enough to meet your daily viewing needs and replacement, and you can share them with your relatives and friends.Reliable material: The 3D glasses are made of black plastic frame and red-cyan quality resin lens,durable and reliable, not easy to break, easy to carry, long-term service for you. Widely use: This red-blue 3D glasses are suitable for most of the red-blue modes of 3D movies, 3D games, 3D printing, 3D TV, and the use experience is excellent. Compatibility: Our red and blue 3D glasses can be applied to general computer monitors, laptops, projectors, computers and most display devices. Suitable size: The total width of the 3D movie style glasses is approximately. 15.5 cm / 6.1 inches, the leg length is about 13.2 cm / 5.2 inches, suitable for most people, stylish and comfortable.Please confirm the size before your order.