The Klein Tools Hard Hat Replacement Suspension works with Klein's KARBN™ full brim hard hats. Easily attaches in 4-Points inside the hard hat shell, featuring a flexible open-frame design for maximum air flow. Ratchet-knob and pivot adjustment help to position securely on the neck. Also available: premium replacement cooling sweatband and premium replacement top pad (sold separately).Features 4-Point suspension; multi-level height adjustment Adjustment size: Hat sizes 6.5 to 8 (52 to 64 cm) Suspension pivot allows ratchet adjustment to be positioned on the neck for a secure fit Fits all Klein Tools cap and full brim style hard hats Hard Hat Suspension features flexible open frame design that easily conforms to your head, allowing maximum ventilation Pivoting, 4-Point, Ratchet Adjustment Ratchet-knob adjustment; easy one-hand adjustment, even with work gloves on NoteReplacement suspension does NOT come with sweatband (Cat. No. KHHSWTBND2) or top pad (Cat. No. KHHTOPPAD2). Those must be purchased separatelyWarningsRead, understand, and follow all instructions, cautions and warnings attached to and/or packed with all Hard Hats and Accessories before each use. Failure to follow these warnings and instructions may result in serious bodily injury or death. Height Adjustment: Multi-level Adjustment Size: Hat sizes 6.5 to 8 (52 to 64 cm) Weight: 0.1500 lbs Overall Dimensions: 8 in. (L) x 7.9 in. (W) x 4 in. (H) Material: Nylon Type: Replacement Suspension for Klein Tools KARBN174 Hard Hat Suspension Type: 4-Point Adjustment Mechanism: Ratchet knob with pivot, one-hand operation Fit: Fits all Klein Tools cap and full brim hard hats Country of Origin: China InstructionsKARBN HH_instructions_WEB.pdfDownloadsVideo DownloadSpec Sheet