1st Birthday Boy - Fun to be One - First Birthday Party Balloon Kits Fun to be One - Boy 1st Birthday - Party Balloon Kit "1" Silver Shaped Mylar Balloon 16 Pack of 11 latex Balloons - (8 Blue & 8 White) Balloons will arrive flat. 1 Silver 1 Mylar 8 Blue Latex Balloons 8 White Latex Balloons Balloons can be filled with helium. Balloons are shipped deflated. 34&#034; Tall Balloon is shipped deflated 11 in diameter, inflated Solid-colored latex that can be inflated with air or helium Balloons are shipped deflated