Made by Qualatex - The Choice of Professionals,Suitable for use with an air inflator. NOT SUITABLE FOR HELIUM (Will only float for approx 6 hours),If you want heart shaped latex suitable for helium you would need to purchase our 15 inch latex hearts,A balloon pump must be used to blow these up to the correct shape. To begin with they will inflate to a round shape and the last but that pops out is the tips of the heart. You can tie them off and give them a slight squeeze and release to perfect the heart shape