✔ Original Design by Bow to Stern Shop – Designed by cruisers, for cruisers. ✔ Fun Cruise Door Decor – Bright and playful, attaches securely to most cruise ship doors. ✔ Durable & Reusable – Strong embedded magnets and sturdy build ensure it lasts all cruise long and can be reused for future trips. ✔ Great Gift for Cruisers – A unique cruise accessory for families, adults, friends, or first-time travelers. ✔ Easy to Use – Simply place it on your cabin door and start the duck exchange game in seconds. No tools, tape, or damage. Cruise Duck Mailbox Magnet – Original Design by Bow to Stern Shop Bring extra fun to your cruise door décor with this miniature mailbox magnet. Simply place a duck inside before leaving your cabin, and fellow cruisers can exchange with their own duck surprises. Durable & Secure – Built with strong embedded magnets that hold firmly to most metal cruise ship doors without tape or adhesives. Made from high-quality 3D printed PLA plastic for a lightweight yet sturdy design. Compact Size – Exterior: 3.2" x 2.9" x 3.8" (8.2 cm x 7.3 cm x 9.7 cm) Interior: 3.0" x 2.5" x 3.4" (7.9 cm x 6.5 cm x 8.8 cm) Sized to fit standard cruise ducks while remaining easy to pack. Gift-Friendly – A thoughtful accessory for families, friends, and cruise enthusiasts. Safety Information – Choking Hazard – Small parts. Not for children under 3 years. Authentic Design – Exclusive Bow to Stern Shop product with embedded magnets and quality finishes.