Jib holders are a type of sailing equipment used to secure the jib sail to the mast. They are typically made from metal and attach to the mast with screws or bolts. The term 'jib holders' is often used interchangeably with 'mast steps, ' as they both refer to the same type of equipment. Jib holders are an essential part of any sailing vessel, as they provide stability and support for the jib sail.