Material Stainless Steel Unit & Package Sold by each, carded for display Part No. Item Size Description 91136 Medium Duty ¾” (Dia.) x 3” (H) Fits antennas up to 48” 91142 Heavy Duty ⅞” (Dia.) x 3 ½” (H) Fits antennas up to 60” (Heavy Duty design for better support and less vibration) Part No. & Image Selection Spring for C.B. Antenna Part No.: -- Please Select -- 91136 91142 Combination of product variants is not available Updating... Related Products Letter Cut Outs Headlight Blinker Covers for Peterbilt Chrome Two Piece Rear Light Bars with Oval (6) Lights in Slanted Style Stainless Steel Double Light “L” Shape Mounting Brackets with 2 ½” Sealed Lights Stainless Steel Permit Sticker Holder DOT-C2 Conspicuity Tape in Red & White 150′ Roll