For when your students need more paper, envelopes, and stickers — and they will, because once kids start sending real mail, they don't want to stop. Each refill restocks your Classroom Letter Box with more watercolor stationery, guided envelopes, and sticker sheets. Same sizes, same magic, ready for the next round of letters.
Pick the size that matches your box, and your classroom snail mail kit is good to go for round two!