Popular in the late 1970s and 1980s, these modular systems allowed users to switch between different barrel sizes and texturing brushes by locking them onto a single power handle. They were typically packaged in molded, hardshell travel cases to keep the interchangeable barrels organized.

• Three metal styling barrels of varying widths.
• One plastic/nylon bristled brush attachment designed to slip over or lock onto a heated core for blow-out styling.
• Bakelite or heat-resistant hard plastic handles, thumb grips, and "cool tips" at the ends to prevent your fingers from burning.