The eyecup is made of soft and durable silicone, so it allows for more comfortable viewing through the camera's viewfinder. Meanwhile, it can prevent scratching and damage to eyeglasses. What's more, the dome-shaped eyecup effectively shields light that may enter the viewfinder and cause flare. It also can be mounted to the viewfinder easily and securely. It replaces original Nikon DK-25 eyepiece, compatible with Nikon camera as below: Nikon D5600, D5500, D5400, D5300, D5200, D5100, D5000, D3500, D3400, D3300, D3200, D3100, D3000It replaces original Nikon DK-25 eyepiece, compatible with Nikon D5600, D5500, D5400, D5300, D5200, D5100, D5000, D3500, D3400, D3300, D3200, D3100, D3000. Spare or Replacement Eyepiece, packaging includes 2 pieces. Mounts easily and securely to camera's viewfinder. Provide cushioning around the camera's eyepiece, and are especially useful to eyeglass wearers. Made from soft and durable silicone + high quality ABS.Manufacturer: JJC. Date First Available: June 20, 2017. Is Discontinued By Manufacturer: No. Best Sellers Rank: #32 in Camera & Camcorder Viewfinders. Customer Reviews: 4.7 out of 5 stars 685 ratings 4.7 out of 5 stars. Item model number: ENDK25 2pack. : B072ZYLYBG. Item Weight: 0.352 ounces. Package Dimensions: 4.65 x 3.35 x 0.94 inches.