The F4001 Cup Sessions fit over the F4002 base and includes the pivot points for the attachments of the user's choice. Cup session Fully adjustable s Csa Approved Canada Fibre-Metal 280-4002 Quick-Lok Kit Cap Hard Hat For secure long-term combination use. Hard hat adapter kit. Note: Brand & Id are auto-populated, no need to add. Hover over the browser tab to see the final description Fiber-Metal F4002 Cup Sessions are fully adjustable to better fit Fiber-Metal caps and major competitive Brands, the welding helmet adapter kit provides more permanent mounting for longer term or high activity applications.
