Material: Aluminum FoilColor: Orange,Red,Pink,Blue,GreenSize: 45cm x 45cm/18’’ x 18’’(appr.) Package included: 1 pcs party balloonFeatureshigh quality.Perfect for Birthday Parties,Weddings and ect.It can take your home decoration more beautiful and full of characteristics.Because the balloon blowing up is very hard, so we suggest you buy the hand pump,then it will more easier to blowing up.Balloon can be filled with helium or air.Notice:Please allow 1-3mm error due to manual measurement and make sure you do not mind before ordering.Please understand that colors may exist chromatic aberration as the different placement of pictures.