Dovetail Rail Plate 43mm 169 In Dovetail Base with 1/4 Inch Thread for Telescope Finder Scope Smartphone Base Expansion 5P9858A 43mm 1.69 Inch Length Dovetail Rail Plate Dovetail Base with 1/4 Inch Thread for Telescope Finder Scope Smartphone Base Expansion 5P9858A Feature: 1. Paired with Phone Holder: This dovetail rail plate can easily secure your phone to an astronomical telescope, allowing you to use your phone to record while observing, freeing your hands. 2. Aluminium Alloy Material: The dovetail plate is precise manufactured from all metal aluminium alloy, making it easy to connect and disassemble dovetail plate without the need for tools. 3. Scope of Application: This aluminium alloy dovetail plate extends the use of the telescope finder scope base. It is suitable for telescope finder scope smartphone base expansion. 4. 1/4 Inch Thread: The dovetail base provides a 1/4 inch threaded hole for connecting 1/4 inch telescopes, smartphones, photography tripods, etc. 5. Dovetail Rail Plate Function: This dovetail rail plate provides a platform for connecting the telescope to the bracket. Specification: Item Type:DovetailRailPlate Material: Aluminum Alloy Weight: Approx. 35g / 1.2oz Package List: 1 x DovetailRailPlate 1 x Screw _x000D_