Aerial Pulling Smoke For Airplane Show

Aerial Pulling Smoke For Airplane Show 
Size:  5.5*25cm
Description: Available Colors:white,yellow,blue,red,green ,purple,orange,black ;

The smoke duration is  180 seconds±20

some displaying video for your reference:

video of aerial pulling smoke

http://my.tv.sohu.com/us/63266549/60669137.shtml

video of yellow smoke

http://v.youku.com/v_show/id_XMTQ5MzYyNjU0OA==.html

video of black smoke 

http://v.youku.com/v_show/id_XMTQ5MzYyMzE3Ng==.html