Coach Black Toiletry Bag with White Accents

That’s a Coach New York wristlet/pouch — specifically, model F36658, which is part of Coach’s “Storypatch” line. For this model, the approximate dimensions are: • Width: 9 inches (23 cm) • Height: 6 inches (15 cm) • Depth: Flat (about 0.25–0.5 inch / 0.6–1.2 cm)