Description du produit :
Please note: This text was taken directly from the manufacturer.
Pair of cast-metal rings of 105mm inner diameter that attach to a mounting plate for Orion guidescopes of up to 80mm aperture. Each ring has three black nylon alignment screws, which will not scratch guidescope finish. Rings attach to mounting plate with two 1/4"-20 hex-head cap screws (included). A small wrench is also included.
