Special pyrotechnic devices designed and manufactured to produce little or no fallout. Close proximity effects can be utilized in areas where traditional Aerial Shells are too hazardous. For more detailed information, please refer to this section. Close proximity effects are differentiated from Stage Effects in that they typically project 75’-200’ in height and are designed to be used in large venues such as sports stadiums. Close proximity effects are designed to simulate standard aerial effects such as flower shells, mine shells, and comets.