PRODUCT INFORMATION - Material: Paper card; 3D Style: Red/Blue; Size: 140x37 mm; Package includes: 50 pairs. HIGH QUALITY - These paper 3D glasses are made from high-quality material, comfortable to wear, attractive, and durable. EASY TO CARRY - Lightweight and foldable, you can take these 3D glasses anywhere to enjoy your 3D movies. NOTE: This product cannot be used as sunglasses. SPECIAL DESIGN - With red and blue filters, these glasses can be used for either red left or red right viewing, depending on how you fold the temples. Two different folding lines allow you to customize the glasses to fit smaller or larger heads. WIDE RANGE OF USE - These 3D glasses are universally suitable for 3D image viewing (red and blue) on the internet, DVDs, VHS tapes, and TV broadcasts (anaglyph). NOTE: These red and blue anaglyph white cardboard glasses are, unusually, for single use.