Made of soft silicone and durable ABS material The extended-length of the soft, thick silicone conforms to the shape of your eye to create a tighter and more comfortable fit whether you're shooting with the naked eye or wearing glasses Helps block unwanted stray light from the viewfinder, resulting in better contrast, reduced glare, and an overall enhanced user experience An upgraded eyecup over the standard camera's original eyecup, its increased depth is nice for blocking more light outdoors, and helpful for keeping nose smudges off the LCD screen Replaces Nikon DK-29 eyecup, compatible with Nikon Z5, Z6, Z7, Z5 II, Z6 II, Z7 II, Z6 III cameras The Kiwifotos long eyecup eyepiece is an improvement eyecup over the standard original eyecup on select cameras. Your eyes will welcome the improved comfort and view provided by the Long silicone Eyepiece Upgrade for your camera's viewfinder. Its extended-length has below advantages over the standard original one comes with the camera: 1. Conforms to the shape of your eye to create a tighter and more comfortable fit. 2. Block unwanted stray light from the viewfinder, resulting in better contrast, reduced glare, and an overall enhanced user experience. 3. Its increased depth is nice for blocking more light outdoors, and helpful for keeping nose smudges off the LCD screen. It replaces the Nikon DK-29 eyecup and compatible with Nikon Z6 III, Z6 II, Z7 II, Z5 II, Z7, Z6, Z5 mirrorless camera.