Compatible: The inner diameter of the telescopes eyepiece eyecup is 22mm/0.87in, suitable for microscope eyepieces, monoculars and binoculars of 42-48mm/1.65-1.89in.
Protect Your Eyes: Telescopes eyepiece eyecup helps to establish a distance between eyes and tentacles. Protect your microscope eyepieces and your eyes.
The telescopes eyepiece eyecup is rubber, which is foldable, sturdy, not easy to damage, and practical.
Excellent The telescopes eyepiece glasses can provide better observation effect without interference from external light sources. Reduce shock and better protect your eyes.
The telescopes eyepiece glasses have undergone strict testing and have stable so you can
