Thank you for your review. I'm pleased to hear you found the build quality of our W3 letterbox, excellent. 😊
The letter slot for our W3 gate and fence mounted range of letterboxes is restricted with a security baffle, to prevent wondering hands reaching inside and removing mail through the entry point. In our experience, there is sufficient space for A4 mail, but we do also provide options with larger collection boxes for those who are unable to empty there letterboxes regularly.