The Cisco Complete Rail Mount for Single Rod Holder rod holder is attached to a top plate with two thumbscrews and can be attached/unattached leaving only the slim fitted mount attached to the rail.

Users found this mount most practical when frequently removing the rod holders from their boat for storage or to re-attach the slim fitted boat cover.

If you are more of a casual fisherman and prefer to have multiple placements around your boat you may also purchase additional thumbscrew rail clamps only. This option allows you to move your rod holders from base to base rather than purchasing additional rod holders than necessary.

Please meaure your rails with a caliper to ensure proper fit:
5/8" fits most BassCat and Bass boats around consoles.
7/8" Fits most rails for Ranger, Skeeter, Triton and Pleasure Cruisers (most popular).
1" Fits most ZV Nitro Series Boats, North River, and similar styles.
1-1/16" Fits Some Fully Aluminum constructed vessels.
1-1/4" Fits Larger Offshore Vessels.