1. The holding strength of slider locking is extremely strong , the slider is durable for shoes.
2. Four punches technology in sliders cap holder.
3. Zipper sliders for shoes.
1. Size: #3, #4, #7. 2. This slider has auto lock function when sliding on the zipper. Our locking strength reaches the international standard. 3. High quality material(zinc alloy) specially to produce the slider.