JBL Party Box 320 back grill protection cover

Back Grill Protection for JBL PartyBox 320 — precision 3D-printed using durable PETG filament. Designed to protect the rear vent/grill from dust, impacts, and accidental damage without affecting airflow or sound quality. Lightweight, heat-resistant, and made for a clean, secure fit—perfect for extending the life of your speaker at home or on the go.