Hard Hat Suspension, Head Protection Suspension Type Ratchet (6-Point), Fits Hat Size 6 to 9, For Use With TASCO Woodsman(TM) Hard Hats, Compatible Hard Hat/Helmet Brand Name TASCO, Compatible Hard Hat/Helmet Grainger Part Number 45EU10, 45EU11, 45EU12, 45EU13, 45EU14, 45EU15, 45EU16, 45EU17, 45EU18, Compatible Hard Hat/Helmet Manufacturer Part Number 100-02000, 100-12000, 100-22000, 100-32000, 100-42000, 100-52000, 100-62000, 100-72000, 100-82000