2inch Eyepiece Adapter — Durable, secure, easy to use Key benefits Secure hold: an internal brass ring provides a positive stop for the set screw, holding 2' eyepieces firmly in place for steady viewing. Longlasting construction: manufactured from quality, wearresistant materials for reliable performance over repeated use. Tool installation: large thumbscrew lets you install and remove the adapter quickly without tools, and makes tightening simple and secure. What it does for you Keeps eyepieces stable during observations so you get consistent, wobble views. Protects the eyepiece barrel from direct contact with the set screw by transferring the clamping force to the internal brass ring. Speeds equipment changes in the field — swap eyepieces or accessories quickly and confidently. Compatibility and size Designed to hold standard 2inch eyepieces. Fits telescope focusers that accept a 2inch adapter (use with any compatible 2' eyepiece or accessory). Performance and material Internal brass ring engages the set screw for a solid mechanical connection. Wearresistant body resists abrasion from repeated insertion and adjustment. Typical uses Backyard observing: quickly secure different eyepieces for planetary, lunar, or deepsky viewing during a session. Field and travel use: keep eyepieces locked in place while transporting or setting up your telescope outdoors. Extended observing or imaging setups: maintain stable alignment of eyepieces, diagonals, or other 2' accessories during long sessions. Specifications (as supplied) Holds 2inch eyepieces Internal brass ring engaged by set screw Large thumbscrew for easy installation quality, wearresistant construction