The Klein Tools Safety Helmet Replacement Suspension works exclusively with Klein's safety helmets. Attaches with 6-Points inside the safety helmet shell, and features a flexible open-frame design for maximum air flow. Ratchet knob and pivot adjustment help to position securely on the head. Also available: replacement sweatband and replacement top pad (all sold separately). Features: Safety Helmet Suspension features flexible open frame design that easily conforms to your head, allowing maximum ventilation; Ratchet-knob adjustment; easy one-hand adjustment, even with work gloves on; Suspension pivot allows ratchet adjustment to be positioned on the neck for a secure fit; Suspension is designed to integrate with chin strap for secure fit; Unique 6-Point suspension; multi-level height adjustment; Adjustment size: Hat sizes 6.5 to 8 (52 to 64 cm); 6-Point Attachment, Ratchet Adjustment; Safety Helmet Suspension is for use with Klein Tools' Safety Helmets only; Flexible open frame design easily conforms to your head, allowing maximum ventilation; Unique 6-Point suspension; multi-level height adjustment; fits hat sizes 6.5 to 8 (52 to 64 cm) - Note: Replacement suspension does NOT come with sweatband (Cat. No. KHHSWTBND) or top pad (Cat. No. KHHTOPPAD). Those must be purchased separately.; Replacement suspension does NOT come with sweatband (Cat. No. KHHSWTBND) or top pad (Cat. No. KHHTOPPAD), available for purchase separately - Warnings: Read, understand, and follow all instructions, cautions and warnings attached to and/or packed with all Safety Helmets and Accessories.; Failure to follow these warnings and instructions may result in serious bodily injury or death.