Versatile Usage: Suitable for viewing 3D images on the internet, DVD, VHS tapes, and broadcast television, offering a wide range of applications. Adjustable Fit: Features two different ways of folding to accommodate smaller or larger viewers, ensuring a comfortable and customized fit. Used for Anaglyph internet images, for 3D Anaglyph DVD (movies), for Anaglyphic prints and anywhere red/blue images can be found. Bulk Packaging: Comes in bulk for convenience and easy distribution, ideal for businesses or events requiring multiple pairs of 3D glasses. Red and Blue Filters: Equipped with red and blue filters, allowing for left or right red usage based on the folding of the temples, providing flexibility for various 3D content. Item Name: 3D Glasses Material: Paper Features: Adjustable Fit, Versatile Usage, Red Blue Filters Size Details: L: 14.2cm/5.59", W: 13cm/5.12", H: 4cm/1.57" (Approx.) Notes: The quantity is about 100pcs, due to manual calculation, the quantity might has 1-5pcs more or less, hope you can understand, thank you. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Tips: Red and blue glasses can only watch 3d pictures and 3d videos in red and blue formats. Other 3d formats are not suitable (left and right formats and top and bottom formats are not suitable). In addition, using players such as BaoFeng video to convert ordinary videos into red and blue formats also has poor results. It is recommended that you go online to download real red and blue 3d videos to watch. Package Includes: 10 Pcs: 10 Pairs of 3D Glasses or 50pcs: 50 Pairs of 3D Glasses or 100pcs: 100 Pairs of 3D Glasses