... At least stay 1days once fill Digital print 1080*540dpi. air walking balloons1.Material: 0.18mm helium PVC, meet ASTM, EN ... regulations2.It is 0.7m diameter , full digital printing PVC air walking balloon , about 2.5kgs including bag , balloon and pole ... professional service of the highest caliber. -------------High-tech digital printing machine, which is helping you to change the dull letters printing ...