18 balloons as pictured.  The Number shape balloons are 34 inches tall, the round foil balloons are approx 18 inches, the latex are standard 11inch ..... all are suitable for filling with helium or air as needed.  We ship flat, you fill when needed.  Free shipping within the US by first class mail. 

CHOKING HAZARD – Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.