This is a standard replacement Antenna Tube with Cap from Dubro. This item can be used anywhere an antenna tube is needed to support a receiver antenna wire. FEATURES: Yellow plastic construction INCLUDES: One antenna tube One antenna tube cap One receiver antenna wire sleeve REQUIRES: Nothing. This is a direct fit part for any boat, car, etc. that uses a standard size antenna tube. SPECS: Length: 12 1/4" (311mm) Diameter: 1/8" (3.2mm) cmc 11/03/04 ir/jxs