Hard Hat Suspension, Head Protection Suspension Type Ratchet (4-Point), Fits Hat Size 6-1/2 to 8, For Use With Mfr. No. S51, S51MT, S61, S62, S71, Compatible Hard Hat/Helmet Brand Name BULLARD, Compatible Hard Hat/Helmet Grainger Part Number 8DK57, 8DMC1, 8DR32, 8DR33, 8DR34, 8DR35, 8PM31, 8PM41, 8RM24, 8XF14, 8ZE07, 9CNL6, 9CNL7, 9DTJ8, 9FAF2, 9GEE0, 9LE56, 9W555. This item has been restricted from sale in the following state (s): []