Some parents know whether they are having a girl or a boy, and order either a blue or a pink canister in advance. The discreet, unmarked, white tubes do not hint at the color of confetti inside so that it will be a surprise for all guests in attendance. Other parents want to revel in the surprise, too, and order a confetti cannon of each color. We will send detailed instructions indicating which cannon to use. Your doctor can read the directions and let you know which one to use. Whether circumstances call for blue or pink, guests will be wowed by the striking and beautiful burst of color.