Windline Anchor Roller MountThis universal anchor roller handles and stows plow, Danforth, Fortress and Delta type anchors.Specifications:URM-1 Handles plow, Danforth, Fortress and Delta type anchors; Recommended for boats 25' - 54'; Handles line up to 1-1/2" diameter and chain up to 1/2"; Overall Length: 22.75"; Outside channel width: 4.25"; Inside channel width: 3.75"; URM-2 For Fortress anchors through FX-23 and Danforth to 13 lbs.; Recommended for small boats; Handles line up to 1" diameter and chain up to 3/8"; Overall Length: 15.5"; Outside channel width: 2"; Inside channel width: 1.75"; URM-3 For Danforth, Fortress, and Delta type anchors; Recommended for boats 25' to 54'; Handles line up to 1-1/2" diameter and chain up to 1/2"; Overall Length: 23.25"; Outside channel width: 4"; Inside channel width: 3.5"; URM-4 For Danforth, Fortress, and Delta type anchors; Recommended for boats up to 35'; Overall Length: 18"; Outside channel width: 3.5"; Inside channel width: 3";