Perfect for keeping postage costs low, these high quality white pizza style boxes are 160x110x20mm allowing them to be sent as a Royal Mail Large Letter. Assembly is fast with pre-creased folding points and an integrated locking tab so these secure, protective mailers increase your efficiency as well as reducing your postal costs. Features include:  Degradable, recyclable and reusable Supplied flat packed Sized to ensure low postal costs Made from 75% recycled single wall board Simple to assemble Imprinted with code: PIP01