MING Traditional Manuscript Sealing Wax Sticks with Wicks for Letter Envelope - Dark Blue Specially designed to be sent in the post will not crack or break. Seals made with Faux Wax can be used on envelopes that are mailed.Don't worry about them crumbling - they will be flexible. Make your imagination run wild with customized decorative sealing. Suitable for hobby,craft project,wedding and party invitations, letter and other sealing files. Create beautiful embellishments on your cards, letters and envelopes, scrapbook pages, gift wrap and tags.