Mainframe for 5º Source Four

Mainframes are lightweight, disposable, flameproof fiber color frames that can be closed with a staple in seconds. By using Mainframes, the color frames for an entire production will weigh very little and cost very little.

Note: The Mainframes fiber material is flameproof and will not burn, but some hot wash lights will cause it to dry and crack. Best performance is with hard edge ellipsoidals like Source Four.