Spell out the celebration with 34-Inch HBD Mylar Letter Balloons in Silver from Sonice Party Inc. These large foil letter balloons spell HBD (Happy Birthday) in a classic silver finish — perfect for milestone birthdays, elegant celebrations, and modern party setups. Fill with air or helium. Designed for B2B wholesale buyers including party supply stores, balloon retailers, event planners, discount stores, and dollar stores. Order birthday balloon supplies from Sonice Party Inc.

Explore more Happy Birthday party supplies, party decorations, party tableware, banners & bunting, and balloon garlands from Sonice Party.