【Mail Slot Anti-Theft Buffer Device】Large size post slot of 3cm x 30cm; the post slot has an anti-theft buffer device; compatible with newspaper, mail, mail-bin, and Nekopos deliveries within 3cm. 【Instructions for Delivery Drivers & Stamp Storage】Includes an instruction sticker for delivery drivers, please place it in a visible location; there is a stamp storage inside the door (you can rest assured with this for receipt stamps); after putting in the delivery, press the one-touch lock to lock, and delivery is complete! 【You Can Receive Packages of This Size!】The lower level can easily accommodate 6 x 2L PET bottles; you no longer have to worry about heavy items like water or rice, eliminating concerns about heavy shopping; you can receive up to 2 packages, so you don't have to worry about delivery times even if deliveries overlap. 【Also Features Rust and Waterproofing】The roof uses waterproof material, so you can rest assured on rainy days; noise-reducing cushions are attached to the door, so you can take out packages even late at night without worrying about the sound of the door; the door has a waterproof groove, so packages and letters will not get wet from rainwater; a cover plate is placed on top of the anchor bolts on the lower level, making the lower level flat and making it easy to take out packages. 【Safe and Secure Double Lock Function】By attaching anchor bolts, the "宅配ボックス付きポスト" (delivery box with post) is fixed, preventing it from falling over in natural disasters, etc., providing peace of mind. By passing the included wire through the anti-theft金具 (metal fitting) and attaching a dial-type padlock, you have a double anti-theft measure, providing peace of mind. 【Also Features Rust and Waterproofing】The roof uses waterproof material, so you can rest assured on rainy days; noise-reducing cushions are attached to the door, so you can take out packages even late at night without worrying about the sound of the door; the door has a waterproof groove, so packages and letters will not get wet from rainwater; a cover plate is placed on top of the anchor bolts on the lower level, making the lower level flat and making it easy to take out packages. 宅配ボックス Post Delivery Box for Detached Houses Delivery Box Storage Box Waterproof Outdoor Large Capacity Mailbox Easy Assembly 【1-Tier Type】