【MULTI-FUNCTIONS】- The main function is to block unnecessary reflection and glare when photographing & shooting through glass / windows. It also offers some additional features. Pull it backwards, it also can be used as a "protective shield", protects against scratches, splash, snow, dust, mud. | 【WIDE APPLICATIONS】- Whether you're shooting through a hotel window, a skyscraper observation deck, the window of a bus or a zoo enclosure, this lens hood makes a big difference and turns a bad photo into a great one even before you start editing! | 【PORTABLE & PRACTICAL】- Removing glare by day and reflections by night, can be used any time you need it. Lightweight and foldable, easy to slip into your backpack and carry on the go. | 【SIZE】- This lens hood is made of premium quality silicone and will stretch fit to any lens with 50mm-70mm diameter. Please confirm your lens size before buying, your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "Ø" (diameter) symbol. | 【EASY TO USE】- Fit your lens, rather than attaching to the glass. This means you're free to move around, change your angle and adjust your camera settings without having to detach anything.