Belgian 1960s police helmets are made of durable plastic and used by Belgian riot police. Internal suspension is of the American style with a 4-point chinstrap. Originally, these would have a badge on the front (similar to the French flaming bomb), but these are missing the badges. 
These are great helmets to start or add to your collection!
 
One size fits most.
 
Since these are used items, please expect scuff marks, frayed webbing, and possible small cracks in the shell.