... machine)1. This unit can fix beads instantly on the material (velvet, jeans, knitted fabric, PU leather ... ultrasonic.2. This unit is applied mainly to the hot fix of shoes, underwear, children's wear ... two colors, improve the efficiency, can change the two colors very easy .5.The rhinestone or crystal or ... ( #6,#8,#10,#12,#14,#16 , and the related diameter of the rhinestones or crystals is: 1.5mm, ...