The nekhakha (flail) consisted of a long handle - typically wooden, sometimes gilded or inlaid - with three beaded or tasseled strands hanging from one end. The strands were originally leather thongs with stone, faience, or metal beads, and the implement could range from fifty centimeters to over one meter in length. The heka (crook) was taller, typically one to one and a half meters, with a curved top resembling a shepherd's staff. In artistic depictions, the pharaoh always held the crook in the left hand and the flail in the right, crossed over the chest in an X-shaped configuration evoking the horizon and the union of dualities.

The symbolism of the flail operated on multiple levels. As an agricultural implement, it represented the tool used for threshing grain to separate wheat from chaff - the pharaoh's role in ensuring the land's productivity and the Nile's bounty. As an instrument of discipline, it represented the punitive power of the king and his duty to punish wrongdoers and maintain order. The flail was also associated with the god Min, the ithyphallic fertility deity, carrying creative and regenerative symbolism. Some early twentieth-century scholars proposed that the nekhakha originated as a fly-whisk - a practical implement in Egypt's insect-rich environment - though modern consensus favors the threshing tool interpretation, with many scholars accepting a dual symbolic function.

The regalia were particularly associated with Osiris, god of the underworld, who is depicted holding the crossed crook and flail as the eternal king of the dead. In the Pyramid Texts, spells invoke the crook and flail to ensure the king's resurrection and dominion in the afterlife. The most important royal ceremony involving the regalia was the Sed Festival (Heb-Sed), celebrated after thirty years of reign and periodically thereafter. In this elaborate ritual of renewal, the pharaoh ran a symbolic race, received the crook and flail from the gods, and was ritually rejuvenated - the ceremony affirming the king's continuing vitality and divine mandate.

Tutankhamun's tomb contained multiple sets of crook and flail among his burial equipment. His innermost golden coffin depicts the young pharaoh holding the crossed regalia, ensuring his eternal kingship as Osiris. Osiris mummiform statues from all periods feature the crossed regalia as standard iconography. The most famous monumental depictions appear on the colossal seated statues of Ramses II at Abu Simbel, the diorite statue of Khafre at Giza, and Hatshepsut's temple reliefs at Deir el-Bahri. Even female pharaohs such as Hatshepsut and Tausret adopted the crossed-chest pose, demonstrating that the regalia transcended gender in representing divine authority.