Gerb 1 : A cylindrical preload pyrotechnic device, intended to produce a controlled spray of sparks with a reproducible and predictable duration, height, and diameter
NFPA 1126 Standard for the Use of Pyrotechnics Before a Proximate Audience, 2006 ed. http://www.nfpa.org/codes-and-standards/document-i nformation-pages?mode=code&code=1126, (Std: Use of Pyrotechnics Before a Proximate Audience - Amer) {380 NFC}