These 90 mm, felt-lined mounting rings are made from solid aluminum, black-anodized, and will fit all William Optics 80 and 90mm telescopes and most other 90 mm OD tubes.   

A worthwhile investment.

• Each ring has 3x three holes top & bottom (M6 metric threading) for mounting on most dovetail plates and WO dovetail plate. Outer hole centres are spaced 30mm apart. 
• Supplied with 4x screws for attaching to dovetail. 
• Nice comfortable knobs with teflon paint protection on locking end.
• Felt-lined to protect even the most delicate telescope finish.

There are currently no specifications available for this product.

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