Vixen Tube Rings are designed for use with Vixen's Dovetail Plate (#2661). They will allow you to fit many different Optical Tube Assemblies to your Vixen Mount. These are designed for maximum stability and can be used with the optional tube ring accessory plate (#3548).
• 140mm Inner Diameter
• Screw type tension for tube lock
• Felt Lined
• Weight 1.5 Lbs. boxed 7.5 X 7.25 x 2.75 inches