Safety Helmet Front Padding, Fits Hat Size One Size Fits Most, For Use With Kask Primero Helmets, Compatible Hard Hat/Helmet Manufacturer Part Number 819MJ3, 819MJ4, 819MJ5, 819MJ6, 819MJ7, 819MJ8, 819MJ9, 819MK0, 819MK1, 819MK2, 819MK3, 819MK4, 819MK5, 819MK6, 819MK7, 819MK8, 819MK9, 819ML0