From The Anvil Letterboxes

This heavy sprung-loaded large letter plate will match perfectly with all types of period front door.

Designed to reduce drafts and tidy up the inside of your front door - a perfect match for their large letter plates.

Anonymous. Kingsley Frodsham, GB. Wed May 25 2022

For composite and upvc doors we would recommend using our door letterbox which is supplied as a full kit and contains a tunnel and brushes to reduce drafts and insulate the door. The sleeve inside the letterbox also protects the door from moisture and masks the aperture cutting.

Designed to reduce drafts and tidy up the inside of your front door - a perfect match for their small letter plates.