Kids boost their sight-word knowledge as they deliver envelopes to our adorable mailboxes! Each sturdy chipboard mailbox has 3-4 high-frequency words on the front. Kids just find the envelopes with each of the matching sight-words…then slip them into the mailbox. When they’re done, kids can open the magnetic door to remove the envelopes—and start the sight-word fun all over again! Set includes 8 mailboxes covering the first 25 sight-words, 75 envelopes and an activity guide. Mailboxes measure 3 1⁄4" tall.