A little letter goes a long way.
The Little Letter Box is our most-loved kids letter writing kit โ a complete snail mail kit with everything a young writer needs to send some happy mail to the people they love most. No screens, no instructions to figure out, just a slow afternoon at the table and a letter going somewhere it's truly wanted.
A favorite gift from grandparents, aunts, and the moms who get it.
What's inside
- 10 pages of fun, double-sided lined stationery
- 10 guided brown craft envelopes
- 1 sheet (30 stickers) of personalized return address labels
- 1 handmade mini address book
- 6 sticker sheetS
- 5 wax seal stickers
- 1 six-in-one multicolor pen
- 1 self-inking fun stamp
- 1 "How to send a letter" instruction card with letter writing prompts and ideas
- Postage Stamp envelope to keep them safe and separate
- OPTIONAL - add Forever postage stamps (so the first letter is ready to mail!)
Mailing tip: Our wax seal stickers are thin and flexible, and letters sealed with them almost always mail just fine with a regular stamp. Once in a while, the post office may ask for a little extra postage for a sealed letter. If you want to be extra careful, add an extra stamp or ask for hand-canceling at the counter. Or just use them for journaling or hand-delivered letters!
Pick your stationery theme
Classic Pink, Classic Blue, Classic Green, Animal Mail, Dino Discovery, Magical Creatures, or Back-to-School (limited time!) โ seven ways to build their perfect pen pal kit.
Personalize it!
Upgrade your stationery and add their name to the top of every stationery page for a personalized touch.
Pick your box color
Choose between 5 colors for the zipper box - Pink, Blue, Green, Purple, and Yellow. Mix and match your favorite stationery theme and favorite box color!
Best for ages 5 to 15. Packed by hand in California. Ships within 3 business days.
๐ก Homeschooling? Make your Little Letter Box an even richer learning experience!
Looking for a little more structure? Our optional homeschool curriculum add-ons are designed to turn your Little Letter Box into a meaningful writing enrichment experience.
Choose from four themed digital lesson plans ($5 each, or $15 bundle):
- โค๏ธ Kindness Mail
- ๐ง Family Connection
- ๐ Mail Around the World
- โณ Time Capsule
Each lesson includes guided activities, writing prompts, discussion questions, optional field trip ideas, and standards-supported learning opportunities. Best of all, every lesson includes adaptations for Kindergartenโ1st, 2ndโ3rd, 4thโ5th, and 6th+ grades, making them perfect for homeschooling families with children of different ages learning together.
Visit our Homeschool Resources page for more details, and to explore available add-ons, curriculum options, and ideas for incorporating letter writing into your homeschool routine.
๐ฌ Keep the magic going with the Heartpost Letter Club
Love the Little Letter Box? Our monthly mail subscription turns it into a year of adventures. Every month, a bundle arrives addressed to your child โ a personal letter from Pip the carrier pigeon, a new story chapter, fun collectibles, and a complete snail mail kit to write and send two real letters (postage stamps included). Optional Adventure Guide for an even deeper dive and for homeschool families including these into their monthly learning plans. $18.99/month, shipping included.
Meet Pip & explore the Mail Club โ๐ Never run out of happy mail
When the paper and envelopes run low, our refill Stationery Set brings the magic back โ no box required. Subscribe & save 15% and fresh themed refills arrive on your schedule (every 1, 2, or 3 months). Pause or cancel anytime.
Set up refills & save 15% โOur promise: if anything about your order isn't right, we'll make it right โ a replacement, refund, or store credit, your call. Just write to us.
My daughter's birthday was this month, and she has had a BLAST using this kit to write thank you notes. I love that everything you need is right at hand and I don't have to set anything up. The stickers are so much fun and she loves having her less common name written on the stationary. I'm also loving the convenience of the address book since we have so much family spread around the world; now I don't have to hunt for addresses! Getting to stay connected to family and friends and also teaching her the mechanics of letter-sending at the same time is great. Highly recommend.
Thank you for the kind words Kate! I love hearing about how even the littlest details are appreciated - I am so glad you both love it!
I'm always looking for gifts the spark creativity!! My kids used the writing kit to mail dad cards when he was on a trip and had the best time going through all of the stickers, paper, stamps and more to get their notes just right. And now dad has a sweet keepsake too!
This box is absolutely perfect, it has everything my kids need to write letters to family and friends. I can tell these boxes are designed with so much care. My kids love writing letters and receiving real mail. Their cousins have these boxes too and this is such a great way to keep them connected. We will absolutely be gifting these to friends in the future!
Loved these so much when they arrived I bought two more. We are moving to another state and buying these for my 8yo daughterโs friends is the best leaving gift to help them keep in touch. Grateful to this seller for producing such a special and thoughtful item!
My grandson really enjoyed his box of stationary and all the stickers and other decoration inside. Heโs enjoying writing letters and we love receiving them. Will definitely be a repeat customer! Thank you!
My niece loved it. She started writing letters right away
Perfect gift! Would buy again.
Love it so much gave to my granddaughter as a gift thank you. I will be ordering more in the future
It was a hit with my great neice who is 8. She immediately wrote a letter to her friend who just moved to Japan
The most beautiful custom box filled with ALL the goodies! She threw in some extra seals and they are so cool!
Such an amazing little box, my niece loves sending letters, so it was a perfect birthday present
My daughters loved their box so much we had to send one to their cousin as well. This is a great way to help littles stay connected to friends and family whether they live across town or across the globe. I love the details and care put into this box from wax envelope seals to custom return labels. This will be a gift on high rotation during school birthday party season. Highly recommend!