... 2 cm to Product Name: Wholesale hand blown colored glass balls Technics:Machine Balls and Hand Blown Balls;The machine ball ... is from 2cm to 10 cm, the hand blown balls size is from 2cm to 20cm,the ... hand blown is heavier than machine ball, of course ... and many colors is ok.Printing: We have hand painting, decal, silk screen printing, and tropical print.Safety:we use ...