Orion 7373 140mm ID Telescope Tube Rings
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Set of two cast-aluminum telescope tube rings with quick-release, hinged clamp knobs and felt lining
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Inside tube ring diameter is 140mm, use with telescope optical tubes up to 140mm in outer diameter
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Sold in sets of two rings
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Mounting bolts and washers are included
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One ring has 1/4"-20 piggyback camera adapter; the other has threaded 1/4"-20 hole
