Home   Mortars   Racks   Plugs   Safety   About Us We make our own plugs! Our firework consumer mortar plugs are made from southern yellow pine. Each plug is 1.5" in height and have a beveled edge for easy insertion. They fit snuggly into a standard HDPE DR11 fireworks mortar tube. Mortar Plug Quantity Price Each 1-50 $0.35 51-199 $0.30 200-399 $0.28 400+ $0.25 Quantity 2009 PYROBOOM • Cincinnati, Ohio • Appling, Georgia • Contact Us