Item Numbers:
531005-30 – Twin
531005-31 – Twin XL
531005-40 – Full
531005-51 – Queen
531005-61 – King

Foundations (9″):
631001-30 – 3/3
631001-31- 3/3XL
631001-40 – 4/6
631001-51 – 5/0

Foundations (5″):
631002-30 – 3/3
631002-31- 3/3XL
631002-40 – 4/6
631002-51 – 5/0