1、Made of good quality resin, it's soft and not resistant to scratch, so please install it with tweezers carefully. 2、When the image is correctly focused, the lines would form a straight line. Otherwise, if the line separates the circle into two halves, it means the focus is not accurate. 3、Helps user to focus accurately in shooting. 4、Nice replacement for worn and old focusing screen. 5、Suitable for NIKON D3300 D5300 D5100 D3200 D5200 D5500. If you are not satisfied with your manual focus lens of SLR camera, this split screen is the best aid to give you accurate focus. Features: Made of good quality resin, it's soft and not resistant to scratch, so please install it with tweezers carefully.  When the image is correctly focused, the lines would form a straight line. Otherwise, if the line separates the circle into two halves, it means the focus is not accurate.  Helps user to focus accurately in shooting. Nice replacement for worn and old focusing screen. Suitable for NIKON D3300 D5300 D5100 D3200 D5200 D 5500. Specification: Material: Resin Color: as picture shown Fitment: for NIKON D3300 D5300 D5100 D3200 D5200 D5500 Package List: 1 x Focusing Screen 3 x Finger CotNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.