Recently developed by Vulcan, GRAND CAKE BOXES are an extended duration pyro display that can be configured to fire from 1 to 5 minutes in several variations. The basic GRAND CAKE BOXES come in 2 or 4 minute duration times, each as an A or B effect style. Coupling on a one minute A, B, C, or D SUPER GRAND CAKE BOX will extend the duration to 3 and 5 minutes respectively, while at the same time increasing teh overall impact of the show. The SUPER GRAND CAKE BOXES use 23 shots of our great 3" and 4" display shells and a surprise ending of a Super Loud Flash Thunder Salute Mine, to really create a stunning conclusion to the display. Highlights and Features of the GRAND CAKE BOX system: * Equipped with the E-Link Electric Match Connector and Fire Transfer Connector making set up, interconnecting, and fire, fast, easy and safe. * 2 and 4 minute GRAND CAKE BOXES use straight up, fan and curtain fire patterns for maximum display appeal. * Tube sizes vary from 3/4" all the way to 4" diameter making these a truly impressive stand alone item. * Fully compatible with all our other E-Link Connector Display Products. * Perfect for a variety of show venues and applications.