how was the recruitment done?
Large numbers of young men from the First Class of commoners were regularly volunteering for the service, which was considered more glamorous than the infantry.
Roman cavalry
 "Equites" originally provided a legion's entire cavalry contingent, although from an early stage, when "equites" numbers had become insufficient, large numbers of young men from the First Class of commoners were regularly volunteering for the service, which was considered more glamorous than the infantry.
what is the emesa helmet? A Roman cavalry helmet can you please describe it? It consists of an iron head piece and face mask, the latter of which is covered in a sheet of silver and presents the individualised portrait of a face, likely its owner. when was it discovered? August 1936 what is its function? The Emesa helmet is highly functional, and was likely made for both parades and battle. where was it discovered? The modern-day city of Homs is it on display anywhere? Yes, the National Museum of Damascus. has it been restored? Yes,  the Emesa helmet underwent several unsuccessful restorations, eventually it was taken to the British Museum, where a final restoration was finished what was the helmet made out of? Iron what other equipment did the cavalry you mentioned before use? A Corinthian helmet, mail armour, saddle
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Roman cavalry [SEP] Recruitment
As their name implies, the "equites" were liable to cavalry service in the Polybian legion. "Equites" originally provided a legion's entire cavalry contingent, although from an early stage, when "equites" numbers had become insufficient, large numbers of young men from the First Class of commoners were regularly volunteering for the service, which was considered more glamorous than the infantry. By the time of the Second Punic War, it is likely that all members of the First Class served in the cavalry, since Livy states that members of Class I were required to equip themselves with a round shield ("clipeus"), rather than the oblong shield ("scutum") required of the other classes - and all images of cavalrymen of this period show round shields.