Our multipurpose box mailers are elegant enough for gift wrap and party favors, yet sturdy enough for sending through the mail. Box mailers are made to perfectly coordinate with the size and color of our envelopes so you can beautifully present your invitations while protecting handmade embellishments. After all, first impressions are everything! In bluebell, a calm, adult sky blue without a trace of sappiness.Meets postal requirements, rate depends on weight.