Flesser&reg; Replacement Rubber Eyecup for Nikon D5000 D5100 D3000 D3100 Eyepiece DK24 Material: Rubber + Plastic It provides cushioning around the camera's eyepiece, and is especially useful to eyeglass wearers And it is made of hollow rubber for soft eye contact. You can even view it with your glasses on Compatible with Nikon D5000 D5100 D3000 D3100 Eyepiece viewfinder protection Hood (DK-24)