Farpoint Eyepiece Extension Tube - 2.25 Inch (Scratch and Dent)Scratch and Dent Discount! Minor blemishes do not affect performance. Farpoint Eyepiece Extension Tube 2. 25 Inch threads into a 1. 25 telescope eyepiece or focus tube to add a 2. 25 long extension. Farpoint Eyepiece Extension Tube 2. 25 Inch Farpoint Eyepiece Extension Tube 2. 25 Inch threads into a 1. 25 telescope eyepiece or focus tube to add a 2. 25 long extension. Designed with high quality stainless steel screws to prevent bending and