Products BaseOther Base Back Antenna Base 156-66230-00 Item Number: 156-66230-00 Base Size: 2-1/2" x 3-5/8" (64 x 92 mm) Height: 4-3/4" (108 mm) Weight.(g): 600 You May Also Be Interested In Rail Base 156-66320-00 90° Base 956-09995-00 Lockable Hold Down Clamp 956-08307-00 Take-Apart Hinge 156-66024-00