son de la misma

are of the same

→ ser
phrase Rare #54,424
are of the same Used before a feminine singular noun to say that two or more things share the same quality, type, or category. The form changes to match the subject and the following noun.
SP: Los dos libros son de la misma edición.
EN: The two books are from the same edition.

Los dos no son de la misma categoría.

The two are not in the same category.

La manzana y la rosa son de la misma familia.

The apple and the rose are from the same family.

Estos productos son de la misma calidad.

These products are of the same quality.

Mis zapatos son de la misma talla que los suyos.

My shoes are the same size as yours.