1.10years experience on manufacture photo equipment
2.Get many patent
4.OEM.Small order are acceptabled
Quick realse plate have insurance button which can help you make sure that camera can't falling down easily
The knob is main knob which help you to adjustment very quick when you shooting .
The professional ballhead is make very precision.
Here is the dail for the head ,There are from 0 to 360 degree .
Certificate and Patent: