• For use with Shakspeare swivel mounts in deck or side mounting of a large antenna
• This stand-off bracket accommodates antennas or extension masts of 1", using inserts included, or 1-1/2" diameter
• Style 408-R Upper Bracket is included in styles 409-R and 410-R Mounting Kits
• Easy-open design for quick laydown
• Corrosion resistant, insulated