90mm (3.5") I.D. rings with three point adjustment,
Wt. 1.25 lbs. per set, 2 rings per set, dovetail mounted, no tools needed. I.D. size from 1.7" TO 3.5", Ht. from top of dovetail plate to center of rings 3.25"
They look like all other Losmandy Rings, but I'll send you a photo if you wish. Beutifully machined and smooth as silk. Free shipping within the CONUS. PayPal preferred. Add 3% credit card charge.