✔ MAIL SLOT REQUIRED – CHECK SIZE BEFORE BUYING: Designed to attach under your existing door mail slot (not included) to catch incoming mail. Size: 20.4" Width x 20" Depth. Please measure your mail slot area before purchase to ensure proper fit and avoid returns. ✔ PREMIUM 900D MATERIAL AND UNIVERSAL FIT - Made from durable 900D polyester material that flexes to catch all shapes and sizes of mail, unlike rigid cages that jam after one large letter. Compatible with Wooden Doors, UPVC Doors, Metal Doors, and Glass Doors. The sleek black design blends with any interior decor. ✔ STRONG ADHESIVE INSTALLATION – NO TOOLS REQUIRED: Easy peel-and-stick setup with pre-applied adhesive strips. No drilling, no screws, and no damage to your door. Ideal for renters and homeowners alike. ✔ CATCHES LETTERS, MAGAZINES AND SMALL PACKAGES - Holds all your daily post securely inside the bag as it arrives through your mail slot. Keep your hallway tidy and organized. The flexible bag design means it never blocks your letterbox opening, even after receiving a large item. Ideal for home, office, or rental properties.