Safety first. Mail second.

Last updated: August 24, 2026

Everything we mail is made to be read with a grown-up, and made so a child can hold it safely. Here is exactly what that means, in plain words.

The mailbox rule Zip teaches every child

Mailboxes live near the street. So Zip asks every member the same pinky promise: never check the mailbox without a grown-up — every single time. It is written into the letters themselves, and a safety reminder sheet ships in every child's first package so the whole family sees it together.

What goes in the envelope

• Paper first. Letters, cards, coloring pages, and keepsakes — made to be held, colored, and pinned to the fridge.
• No small parts for young children. We follow strict no-small-parts guidelines for kids under age 7.
• Still, inspect first. We ask every grown-up to look through the envelope before handing it over — especially in households with babies or toddlers, since even paper pieces and stickers belong away from little mouths.

Younger brothers and sisters

Pieces like real stamps, postcards, and character cards are sized for the child the envelope is addressed to. If you read the letter as a family, keep the smaller pieces out of reach of children under 3.

If anything ever concerns you

If a piece arrives damaged, or anything in an envelope worries you, email zip@zipsmailboxclub.com. We replace it and update our checks. A real person reads every message.

Photos and your child's privacy

Share only what you are comfortable sharing. We never tag or identify your child without your explicit permission. The full details live in our privacy policy.

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