40mm Inside Diameter Adjustable Rings Set for Guiding Finders

Features:
Tube rings make from metal,the guide rings are suitable for small and mediums sized guiding telescopes,40mm compact finder guidescope set for astrophotography for mounting a guide parallel to the main
metal guide rings for compact finderscope or guidescope with knurled metal screws. big screws with maximums grip allow easy use even with gloves
The crews have inlays for avoiding unaesthetic scratches and pressure marks on the while still ensuring reliables clamping
The inner diameter of the tube rings is 40 mm for telescopes between 20 to 40mm tube diameter can be mounted adjustable
Wonderful gift,sweet warm friend family and yourself.

Specifications:
Materials:Alloy

Package Includes:
1Set Guiding rings

Note:
Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.