Riddell Speedflex CU-SF-EG-Big Grill Full Size Facemask. Add this Speedflex Facemask to your prized helmet to make it into a dynamic collectible. The facemask fits all Adult sized and Youth sized Riddell Speedflex Full Size Helmets. It is also a direct replacement for Authentic NFL Speedflex Full Size Helmets. Suitable for on-field play. Mounting hardware is not included.