It is a Poomdae made of rhino horn, worn by 1st rank officials. A total of 20 decorations were attached to the lacquered belt, with fabric that was coated on leather. On the front center of the Seodae is 'Samtae' which is for opening and closing, and 6 waterdrop-shaped 'Nam-du-yook-sung' decorations, 3 on each side. Behind are the rectangular 'Jwabo' and 'Woopil', a flower-shaped golden decoration, and 'Tami' decoration which has a rectangular front and a round back, and on the back are 7 rectangular 'Buk-du-chil-sung' decorations. The band was differentiated by rank, and 1st rank was Seodae, 2nd rank was Geumdae (gold band), 3rd~4th ranks were Eundae (silver band), and 5th rank and below were Heukgakdae (black band).