Description: Definitely it will be effective to correct your telescope to use for observe astronomy and stars, it will be accurately and easy to install for guide you. Produced with solid texture that it has long lifespan to use, and the mini compact size allow you to take it to anywhere to use for outdoor fishing. By making with metal material, this guide scope is solid and wear-resistant. The length of the product is 12cm, the width is 4.5cm, the height is 4.5cm. It is suitable for install on telescope to observe star. Item Name: Guide Scope Material: Metal Features: Dust-Proof, Adjustable, High Stability Caliber: 32mm Focal Length: 125mm Interface: 1.25/M42 Interface Size Details: 12cm x 4.5cm x 4.5cm/4.72" x 1.77" x 1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Reminder: The product does not contain eyepieces and tracking drive devices. Package Includes: 1 x Guide Scope 2 x Dust-Proof Covers 3 x Screws 1 x Dovetail Plate