Eevee 2019 PRO-Binder - Rules of Play says:

9-pocket PRO-Binder with printed cover. Embossed middle black web material gives cards a classic framed look. Side loading pocket design to prevent cards from easily falling out. Elastic strap holds the binder shut when not in use. All materials made from archival-safe, acid-free non-PVC material. Holds 360 Cards in Ultra Pro Deck Protector sleeves.