Bulk Buy 10” Inch Crackling Effect (25cm) Sparklers (PACK OF 150) This bulk discount of sparklers is ideal for weddings and other occasions. You will receive 150 sparklers in total which will be in sleeves. All 150 sparklers will be a crackling effect, and for outdoor use. ** Please note if any sparklers say indoor use then they will also burn like a normal sparkler, so there is always a risk of fire. They are only classified as indoor because they give off a little less smoke which makes it safe to use indoors.