Retractable Bollards Ameristar's line of manual and automatic retractable security bollards are available in a variety of styles and crash ratings to fit your project's needs. Titan Security BollardsK12 Anti-Ram | Automatic Retractable Bollard Defender Security BollardsK4 Anti-Ram | Automatic Retractable Bollard GloBoll Lit BollardsAutomatic Retractable Lit Bollard Retractable Manual BollardsEconomical Security & Traffic Control