DetailsNOW! Mounting your downrigger board is easy.-No More Washers-No More Shims!-EASY ON AND EASY OFF! Bottom section tilts and locks in any position up to 30 degrees to match the contour of your boat and still be flat on top. Size: 3" Wide x 5-1/2" Long x 6-1/2" High. 2 Complete units per box.