Pentax SMC XW 14mm Wide Angle Eyepiece (1.25")- 27x w/ 65mm, 35x with 80, 45x with 100mm Pentax Scopes Handheld Voice Recorder Accessories The backing is a vinyl

The backing is a vinyl cotton cloth and applied with a synthetic rubber resin for maximum adhering properties

High-Strength Composite Material

10 x Prepared Slides

Rugged Connectors

Pentax SMC XW 14mm Wide Angle Eyepiece (1.25")- 27x w/ 65mm, 35x with 80, 45x with 100mm Pentax Scopes Handheld Voice Recorder Accessories The backing is a vinyl70 Apparent Field of View 20mm Eye Relief Waterproof & Fogproof Fits Pentax Spotting Scopes Pentax premium spotting scopes adhere to the American standard of 1. 25" eyepiece thread diameter, facilitating the use of eyepieces from independent manufacturers. That also means, of course, that the wonderful Pentax eyepieces can be used in other telescopes and spotting scopes which accept 1. 25" eyepieces. Pentax eyepieces are a near consensus choice